173 tools found
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JSON Formatter
Beautify, minify and validate JSON data instantly.
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JSON Validator
Validate JSON structure and pinpoint syntax errors.
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JSON Minifier
Minify JSON structure.
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JSON to XML
Converter JSON to XML.
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XML to JSON
Converter XML to JSON.
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JSON to Excel / CSV Converter
Convert JSON data (objects or arrays) into a downloadable Excel (.xlsx) file or CSV table.
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JSON Viewer / Tree Editor
View JSON data as an interactive, collapsible tree — expand, collapse, and edit values directly.
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JSON to TypeScript Interface
Automatically convert a JSON object into TypeScript interface or type code for frontend developers.
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JSON to HTML Table
Turn complex JSON into a clean, sortable and filterable HTML table.
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JSON Schema Generator
Automatically generate a JSON Schema from a sample JSON text, for API validation purposes.
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JSON Diff / Compare
Compare two JSON texts side-by-side and highlight differences in lines or values.
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YAML to JSON Converter
Convert YAML configuration files (popular in DevOps) to JSON, or convert back from JSON to YAML.
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JSON Path Tester / Evaluator
Test JSONPath expressions to extract specific parts of a large JSON file.
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JSON to Java POJO Class
Convert a JSON schema into Plain Old Java Object (POJO) classes for backend/Android developers.
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JSON to Python Dict / Object
Convert JSON text into Python Dictionary format, with proper quote style fixes.
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JSON to Go (Golang) Struct
Convert a JSON object into Go (Golang) struct definitions, complete with JSON tags.
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JSON to SQL Converter
Turn JSON data (especially an array of objects) into SQL INSERT INTO statements.
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JSON Web Token (JWT) Decoder
Decode a JWT string to view its header and payload JSON, without validating the signature.
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Line Barcode Generator
Generate CODE128, EAN-13, QR and more barcode formats.
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QR Code Generator
Create QR codes from URLs, text, emails and vCards.
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2D Barcode Generator
Create 2D barcodes from text.
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UUID Generator
Generate RFC-compliant v1, v4, and v5 UUIDs in bulk.
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Base64 Encoder
Encode and decode Base64 strings and files.
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CSV Viewer
Upload or paste CSV data and view it as a sortable table.
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Hash Generator
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes for text or files, with checksum verification.
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URL Encoder
Encode and decode URL components and query strings.
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Text Compare
Diff two blocks of text and highlight differences.
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Character Counter
Count characters, words, and lines.
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Case Converter
Convert text to UPPER, lower, Title Case.
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Text to Speech (TTS) Reader
Convert written text into spoken audio right in your browser, using the operating system's built-in Web Speech API.
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Find and Replace Tool
Search for a word or phrase inside long text and replace it in bulk, with optional Regex support.
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Lorem Ipsum / Text Generator
Generate placeholder dummy text — paragraphs, words, or a list — for web design mockup needs.
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HTML Tags Stripper / Remover
Clean HTML code from text, leaving only plain text behind — great for copying content from the web.
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Remove Duplicate Lines
Sort a long list-style text and automatically remove every line that is an exact duplicate.
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Binary / Hex to Text Converter
Convert a string of binary digits (01000001) or hexadecimal code into readable plain text, or the other way around.
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Slug Generator (SEO)
Turn an article title into an SEO-friendly URL slug — all lowercase, spaces replaced with hyphens, punctuation removed.
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Random Line Selector / Picker
Enter a list of text (like raffle participant names) and randomly pick one or more winning lines, fairly.
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Text Alphabetizer / Sorter
Instantly sort lines of text alphabetically (A-Z or Z-A) or by character length.
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Line Counter & Blank Line Remover
Count the total number of lines in a text and remove every blank line in one click.
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Text Upside Down / Reverse Generator
Reverse the letter order of a text, or flip it so the letters themselves appear physically upside down.
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Word Frequency Counter
Analyze a text to find which words appear most often and show each one's keyword density percentage.
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List to Array / JSON Converter
Convert a line-by-line text list into a programming array format (["item1", "item2"]) or JSON.
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Markdown to HTML Converter
Convert Markdown shorthand (like # or **) into ready-to-use HTML tags, or convert HTML back into Markdown.
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Regex Tester (Simple)
Enter a regular expression and test whether specific text matches that pattern.
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Image Resizer
Resize images to exact dimensions without quality loss.
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Image Converter
Convert images between formats.
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Background Remover
Remove image backgrounds and replace with any color.
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Image Compressor
Shrink image file size significantly without drastic quality loss.
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WebP Converter
Convert legacy JPEG/PNG images to modern WebP for faster websites, or convert back.
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Image Cropper
Crop images to standard aspect ratios like 1:1, 16:9, and more.
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SVG to PNG Converter
Convert SVG vector graphics to PNG at any resolution, with transparent or solid background.
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Image to PDF Converter
Combine one or more images into a single print-ready PDF document.
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HEIC to JPG Converter
Convert iPhone HEIC photos to standard JPG so they open on Windows or Android.
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Image Color Picker
Upload an image and click anywhere to get accurate HEX, RGB, and CMYK color codes.
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Blur / Pixelate Image Tool
Censor sensitive areas of a photo — faces, license plates, or private info — with blur or pixelation.
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Add Watermark to Image
Add a text or logo watermark to one or many images in bulk, to protect photographer or seller copyright.
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Image Flip & Rotate
Rotate images 90, 180, or 270 degrees, or flip them horizontally and vertically.
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Image Metadata (EXIF) Viewer
Read hidden data inside a photo, like camera model, lens settings, and GPS location.
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EXIF Data Remover
Strip hidden metadata (camera info, GPS location) from one or many photos in bulk before sharing.
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Base64 to Image / Image to Base64
Convert an image to a Base64 code string for embedding in code, or decode Base64 back to an image.
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Image Inverter (Negative Effect)
Invert all colors in an image to create a film negative effect.
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DPI Converter
Change the DPI metadata of an image (e.g. 72 to 300 DPI) for print submission requirements.
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Pomodoro Timer
Boost productivity with timer.
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Note Pad
Simple sticky notes for quick ideas.
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Time Zone Converter & Meeting Planner
Compare multiple time zones side by side visually to find the ideal time for a global meeting.
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Percentage & Discount Calculator
Calculate percentage change, shopping discounts, price markup, and tax instantly.
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Interactive Countdown Timer
Create a custom countdown for an important event, deadline, or project launch, with a sound alarm.
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Eisenhower Matrix Task Board
Organize your task list into 4 priority quadrants (Do, Schedule, Delegate, Delete) using drag-and-drop.
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Work Hours / Timesheet Calculator
Calculate total weekly work hours, break time, and estimated pay based on your hourly rate.
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Reading Time Calculator
Estimate how long it will take to read silently or read aloud an article or document.
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Stopwatch with Lap Split Export
A high-precision timer with lap recording, exportable straight to a CSV/Excel file.
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Merge PDF
Combine several separate PDF files into one neat, ordered PDF document.
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Split PDF
Break one large PDF file into several separate PDF files by chosen page ranges.
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PDF to JPG / PNG Converter
Extract every page in a PDF document and convert them into ready-to-download JPG or PNG image files.
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Compress PDF
Shrink a PDF file size by compressing the images in it locally, so it fits within email attachment limits.
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Organize / Reorder PDF Pages
View every PDF page as a visual thumbnail, then reorder or delete pages before exporting.
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Rotate PDF
Permanently rotate upside-down or sideways PDF pages by 90, 180, or 270 degrees — one page or the whole document.
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Add Watermark to PDF
Add a transparent text (like "CONFIDENTIAL" or "SAMPLE") or logo image watermark to every page of a PDF in bulk.
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Unlock PDF / Remove Password
Remove owner password restrictions from a PDF so it can be printed, copied, or edited again.
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Protect PDF / Add Password
Lock a PDF with a strong AES-256 encryption password so unauthorized people cannot open it.
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Add Page Numbers to PDF
Automatically add page numbers (e.g. "Page 1 of 10") to the top or bottom corner of every page.
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e-Sign PDF (Simple Digital Signature)
Draw a signature with your mouse or touchscreen, or upload one, then place it anywhere on a PDF page.
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HTML to PDF Converter
Convert raw HTML text or web code into a PDF file with a clean, print-ready layout.
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PDF Text Extractor
Read and copy all the raw plain text from inside a PDF file without altering the original file.
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EPUB to PDF Converter
Convert a digital e-book file (EPUB) into a PDF document, making it easier to print or read on a computer.
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PDF Metadata Editor
Change hidden information inside a PDF file, like the Author, Title, Subject, and Keywords.
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TXT to PDF Converter
Convert plain text notes (.txt) into a formal PDF document, with font and page margin settings.
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Markdown to PDF Converter
Convert a Markdown (.md) file into a nicely formatted PDF document with elegant text styling.
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Bates Numbering PDF
Add sequential Bates stamp identification numbers to every page of one or more PDFs, for legal document production.
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GrayScale PDF Converter
Turn all colors, images, and text in a PDF into black and white to save printer ink when printing.
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CSS Glassmorphism Generator
Generate a modern frosted-glass UI effect complete with ready-to-use backdrop-filter CSS code.
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CSS Box Shadow Generator
Create smooth shadow effects with visual controls (X, Y, blur, spread, color) and get the CSS code.
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CSS Gradient Generator
Build an interactive linear or radial color gradient with a one-click CSS copy option.
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CSS Border Radius / Blob Generator
Create unique organic blob shapes using complex multi-value border-radius CSS.
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CSS Grid / Flexbox Layout Builder
A visual tool to design a Flexbox or Grid web layout with drag-and-drop, then export the code.
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CSS Animation / Keyframes Generator
Create custom CSS animations (bounce, fade, pulse, rotate) visually with a simple timeline, then export the @keyframes code.
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CSS Neumorphism Generator
Generate the neumorphism design style (raised or inset soft 3D plastic look) with color and dual-shadow controls.
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CSS Clip-Path / Shape Maker
A visual shape-cutting tool to create polygon, star, arrow, or trapezoid CSS elements using clip-path.
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CSS Filter & Image Effects Generator
Apply CSS filter effects (blur, brightness, contrast, grayscale, sepia, hue-rotate) to an image visually, then export the code.
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CSS Triangle Generator
Create pure CSS triangle shapes (no images) by setting direction, size, and color using the border property.
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CSS Text Effect / Shadow Generator
Create 3D text-shadow, neon glow, or outlined stroke text effects visually.
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CSS Clamp / Fluid Typography Generator
Calculate a CSS clamp() function for responsive font sizes that scale automatically with screen size, no media queries needed.
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CSS Button Style Generator
Create modern web button styles (hover effects, shadows, click animations) visually and copy the HTML/CSS code.
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CSS Waves / Wave Divider Generator
Generate aesthetic wavy SVG section dividers for hero sections and page transitions, ready to copy as SVG or HTML/CSS.
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CSS Accordion Generator
Build interactive collapsible accordion components using pure HTML5 & CSS3 — no JavaScript required on your site.
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CSS Custom Scrollbar Generator
Customize your website scrollbar appearance (color, thickness, rounded corners) using modern CSS syntax, for both WebKit and standard browsers.
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CSS Transform 2D / 3D Generator
Rotate, skew, and scale elements visually in 2D or 3D space using the CSS transform property, then copy the generated code.
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CSS Tooltip Generator
Create pure-CSS hover tooltips for buttons or text, with a positioned arrow, no JavaScript required.
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CSS Pattern & Background Generator
Create lightweight dots, lines, grid, and stripe backgrounds using pure CSS repeating-gradient syntax — no images needed.
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CSS Cursor Selector & Generator
Browse the full library of built-in CSS cursor styles (pointer, grab, zoom-in, and more) or build a custom SVG-based cursor.
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Secure Password Generator
Generate strong, random, hard-to-guess passwords with a real-time strength indicator, using cryptographically secure randomness.
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Htpasswd Generator
Generate username:password lines (bcrypt, MD5/APR1, or SHA-1) for Apache/Nginx Basic Authentication files.
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Htaccess Redirect Generator
Visually build .htaccess rules for 301 redirects, HTTPS enforcement, and IP blocking on Apache web servers.
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Password Strength Checker
Analyze a password locally and estimate how long it would take an attacker to crack it, with no data ever leaving your browser.
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Passphrase / Diceware Generator
Generate secure, memorable multi-word passphrases (like correct-horse-battery-staple) using the EFF Diceware wordlist.
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AES-256 Encrypt & Decrypt Tool
Encrypt and decrypt text or private messages using military-grade AES-256 encryption with a custom passphrase, entirely in your browser.
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RSA / ECC Key Pair Generator
Instantly generate a public/private key pair using RSA or Elliptic-Curve (ECC) cryptography, powered by your browser's native Web Crypto API.
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URL Tracking Parameter Stripper
Remove privacy-invasive tracking codes (utm_source, fbclid, gclid, and more) from any link so it's clean and safe to share.
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Content Security Policy (CSP) Generator
Visually build a Content Security Policy to protect your website against Cross-Site Scripting (XSS) attacks, with security warnings built in.
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HTML Entity / XSS Escaper Tool
Convert special HTML characters (<, >, &, ") into HTML entities to prevent script-injection (XSS) vulnerabilities, with a decoder too.
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TOTP 2FA Secret Key & QR Generator
Generate a Two-Factor Authentication (2FA) secret key and scannable QR code for testing apps or setting up accounts, with a live code preview.
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GIF Maker from Images
Combine several static images into one animated GIF, with control over the delay between frames.
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HTTP Security Headers Generator
Generate HSTS, X-Frame-Options, Referrer-Policy, and other security header configs for Nginx, Apache, or Cloudflare.
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Bcrypt Hash Generator & Verifier
Generate a Bcrypt password hash and verify it against a plaintext password, computed entirely in your browser using WebAssembly.
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Steganography Tool (Hide Text in Image)
Hide a secret message inside an image's pixels — and extract it back out — locally, without visibly altering the image.
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Subnet Mask & IP Anonymizer Helper
Mask the last octet of IPv4/IPv6 addresses in log files for data privacy compliance, plus a full subnet calculator.
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Robots.txt Security & Privacy Generator
Build a robots.txt file to ask search engines not to index admin pages or sensitive directories — with clear warnings about what it can't protect.
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My IP & Browser Info Finder
Instantly see your public IP address, ISP, country, browser type, and screen resolution.
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MAC Address Formatter
Clean up and convert MAC address formatting — colon to hyphen, Cisco dot notation, uppercase or lowercase.
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User-Agent Parser
Break down a browser User-Agent string into clean device, OS version, and rendering engine details.
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Port Number Reference / Lookup
Quick lookup table for standard network port numbers — what runs on Port 80, 443, 22, 3306, and more.
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ChatGPT Prompt Perfector / Generator
Convert a simple idea into a structured prompt (role, context, instructions, and constraints) for more precise LLM output.
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Midjourney / AI Image Prompt Builder
A visual tool for building image prompts — art style, lighting, camera type, and aspect ratio — with click-to-add buttons.
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Image to AI Prompt Converter
Upload a photo and get a draft text prompt from a local, in-browser analysis of its subject, colors, and lighting.
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AI Token Counter (GPT-4 / Claude)
Count tokens and estimate API cost in real time — exact for GPT via a real tiktoken-based tokenizer, estimated for Claude.
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AI Text Humanizer Pre-Checker
Analyze a draft for sentence-length uniformity, repetition, and overused AI-style vocabulary — a self-editing aid, not an AI detector.
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ChatGPT System Prompt Generator
Build structured Instructions for a Custom GPT — persona, purpose, strict rules, and response format — following OpenAI's own writing guidelines.
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LLM Context Window Estimator
See what percentage of common context windows (8K, 32K, 128K, 200K, 1M) your document or text would use — paste text or upload a .txt/.pdf file.
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AI Persona & Roleplay Generator
Browse a library of ready-made "act as" persona templates — Senior Python Dev, B2B Marketing Expert, and more — and customize tone, level, and focus.
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Negative Prompt Generator (AI Art)
Generate a categorized negative prompt list to filter out bad hands, blurry text, and other common defects in Stable Diffusion and Flux.
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Prompt Anonymizer / PII Eraser
Detect and mask emails, phone numbers, API keys, and other personal data from your text before pasting it into ChatGPT.
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LLM JSON Schema Generator
Build a JSON Schema visually and get it formatted for OpenAI Structured Outputs, OpenAI Function Calling, and Anthropic Tool Use.
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Suno & Udio AI Music Prompt Generator
Build a style prompt and song structure template for Suno or Udio — genre, mood, tempo, instruments, and vocal style.
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AI Video Prompt Generator (Runway/Sora)
Build a camera movement and lighting prompt for AI video generators like Runway Gen-4, Sora, and Pika — one camera move at a time.
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ChatGPT Formatting Cleaner
Remove markdown symbols, code backticks, and chatty preamble like "Here is the..." so ChatGPT text is ready to paste anywhere.
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Few-Shot Prompt Example Builder
Build a few-shot prompt from Input/Output example pairs — get both a universal plain-text version and a Claude-optimized XML version.
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Markdown to LLM Clean Text Converter
Strip HTML tags, smart quotes, and invisible characters from text copied off the web, and see the real character and token savings.
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Prompt Chaining / Sequence Builder
Break a complex task into a sequence of focused prompts, where each step's output feeds the next — plain text or Claude-optimized XML.
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AI SEO Meta Prompt Builder
Generate a prompt that gets an AI to write SEO title tags and meta descriptions within Google's real pixel-width limits, with character self-verification built in.
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AI Code Review Prompt Template
Generate a structured prompt for AI code review — bugs, common security issues, and quality problems — with severity-tagged, actionable feedback.
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Tree of Thoughts (ToT) Prompt Maker
Generate a Zero-Shot Tree of Thoughts prompt that has an AI explore several reasoning paths through simulated experts before converging on an answer.
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Mortgage & Home Loan Calculator
Calculate your monthly home loan installment with flat or effective/declining interest rate, plus a full yearly amortization schedule.
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Compound Interest Calculator
Project long-term investment growth with monthly contributions, then see the result adjusted for inflation to show today's purchasing power.
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Auto & Car Loan Calculator
Calculate your monthly car payment including trade-in value and sales tax, and compare monthly payment vs total interest across common loan terms.
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Debt Payoff & Snowball Calculator
Simulate paying off multiple debts with the Snowball or Avalanche method, and see your exact debt-free date and total interest paid.
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FIRE Calculator
Calculate your Financial Independence number using the 4% safe withdrawal rate rule, and project how many years until you can retire early.
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Loan Amortization Schedule Builder
Generate a complete month-by-month loan payment schedule showing the principal vs interest split, with an optional extra payment.
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Rent vs. Buy Home Calculator
Compare the true financial outcome of renting vs buying over time, including the opportunity cost of your down payment and home appreciation.
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Credit Card Minimum Payment Calculator
See how many years and how much interest it really takes to pay off a card with only the minimum payment, compared against a fixed payment.
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Salary Take-Home / Net Pay Estimator
Estimate your net take-home pay after income tax, social security, health insurance, and other deductions, across any pay frequency.
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Emergency Fund Calculator
Calculate your ideal emergency fund target — 3 to 12 months of expenses — based on your household's actual income and risk factors.
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50/30/20 Budget Calculator
Split your monthly income into Needs, Wants, and Savings, and compare your actual spending against the targets to see where you're over or under.
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Refinance Savings Calculator
Find out whether refinancing to a lower rate actually saves money after closing costs, including your exact break-even point.
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Freelance Hourly Rate Calculator
Calculate the hourly rate you need to charge as a freelancer to cover tax, business expenses, time off, and non-billable hours.
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Simple vs. Compound Interest
A visual chart comparing how money grows with simple (flat) interest versus compound interest over time, with a year-by-year breakdown.
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ROI & Annualized Return Calculator
Calculate your investment's total ROI and annualized return (CAGR) from initial and final capital, the fair way to compare across time.
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Savings Goal & Milestone Planner
Calculate exactly how much to save each month to hit a specific savings target by your deadline, with yearly progress milestones.
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Inflation Impact Calculator
See how much today's money will really be worth in the future after inflation, and how much you'd need to match today's purchasing power.
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Profit Margin & Markup Calculator
Calculate gross margin, markup rate, and net margin for product pricing, and see clearly why a given markup is never the same as that margin.
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CD / Fixed Deposit Calculator
Calculate the maturity value of a CD or fixed deposit from its APY and term length, including an early withdrawal penalty estimate.
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Present & Future Value Calculator
Calculate the present value or future value of money using the time value of money, with your choice of discount rate and compounding frequency.
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Break-Even Point Calculator
Calculate how many units or how much revenue a small business needs to break even, hit a profit target, or see its margin of safety.
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Tip & Split Bill Calculator
Quickly calculate a restaurant tip and split the total bill fairly among any number of people, with an option to tip before or after tax.
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