100+ free developer tools, continuously updated — all run in your browser with no sign-up.
Compress images by adjusting quality — reduce file size while keeping acceptable visual quality
Crop and resize images to exact dimensions — perfect for thumbnails, social media, and avatars
Apply visual filters to images — grayscale, sepia, brightness, contrast, blur, invert and more
Convert images between PNG, JPEG and WebP formats instantly in your browser
Rotate images by any angle and flip horizontally or vertically — quick orientation fixes
Add custom text watermarks to images — choose font, size, color, opacity and position
Extract the dominant color palette from any image — get hex and RGB values for design use
Combine multiple images into a single collage with customizable layouts and spacing
Remove image backgrounds by selecting the background color — runs entirely in your browser
Prepare images for text extraction with zoom, contrast, and preprocessing tools — capture and copy text manually
View EXIF, IPTC and XMP metadata from photos — camera info, GPS location, timestamps and more
Convert SVG vector graphics to PNG raster images at any resolution — perfect for icons and exports
Pixelate or mosaic regions of an image — censor faces, blur sensitive info
Pick any color from an uploaded image — get hex, RGB, and HSL values
Add realistic noise or grain to images — create textures and vintage effects
Add borders, frames and rounded corners to images
Trim and cut audio files with visual waveform editor
Convert audio files between formats — all processing in browser
Visualize audio waveform — upload any audio file to see its shape
Adjust audio volume — boost or reduce loudness and export the result
Change audio playback speed from 0.25× to 4× and export
Join multiple audio files into one — concatenate MP3, WAV and other formats
Record audio from your microphone and export — no software needed
Detect the beats per minute (BPM / tempo) of any audio file
Generate white noise, pink noise, brown noise and other ambient sounds
Reverse any audio file — play it backwards and export the result
Add fade-in and fade-out effects to audio files with adjustable duration
Multi-band audio equalizer — adjust bass, mid and treble frequencies
Convert video clips to animated GIF — select range, frame rate and output size
Extract frames from a video as thumbnail images — pick any timestamp
Record your screen directly in the browser — no extension needed
View video file metadata — resolution, duration, format and more
Trim video files — select start and end time to export a clip
Compress video file size — reduce bitrate without re-uploading
Convert video between MP4 and WebM formats — runs entirely in your browser
Extract the audio track from a video file — download as MP3 or AAC
Change video playback speed — slow motion or timelapse
Rotate or flip a video — fix portrait/landscape orientation
Merge multiple PDF files into one document
Split a PDF into multiple files by selecting page ranges
Compress PDF file size by removing metadata and optimizing structure
Export PDF pages as PNG or JPEG images
Convert multiple images into a single PDF document
Calculate percentages, percentage change, and add/subtract percentages
Convert between units of length, weight, temperature, volume, area, speed and time
Calculate your Body Mass Index (BMI) in metric or imperial units
Calculate your exact age in years, months, days and more
Calculate monthly payments, total interest and amortization schedule
Encode strings to Base64 or decode Base64 strings
Encode or decode URL percent-encoded strings
Generate SHA-1, SHA-256, SHA-384 and SHA-512 hashes
Escape or unescape HTML entities
Convert images to Base64 data URIs for embedding
Generate HMAC with SHA-1, SHA-256, SHA-384 and SHA-512
Encode and decode data using Base32 encoding (RFC 4648)
Convert text to hexadecimal representation and back
Convert text between UTF-8, ASCII, Latin-1 and other encodings
Escape and unescape strings for JSON, JavaScript, HTML and SQL contexts
Convert text to binary (0s and 1s) and binary back to text
Translate text to Morse code and Morse code back to text
Format, validate and minify JSON
Format, beautify and minify HTML code
Format, beautify and minify CSS stylesheets
Format, beautify and minify JavaScript code
Format and beautify SQL queries
Format, beautify and minify XML; convert between XML and JSON
Optimize and minify SVG files — remove metadata, compress paths
Convert colors between HEX, RGB, HSL and ARGB formats
Convert Unix timestamps to human-readable dates and vice versa
Convert between JSON and YAML formats
Convert numbers between decimal, binary, hex and octal
Convert Markdown into HTML output
Convert HTML into clean Markdown
Convert CSV data to JSON and JSON arrays back to CSV
Generate TypeScript interfaces from JSON data
Convert between TOML and JSON formats
Convert between CSS units: px, rem, em, pt and more
Convert between data size units: bytes, KB, MB, GB, TB
Generate Go struct definitions from JSON data automatically
Generate Python dataclass or TypedDict definitions from JSON
Convert JSON arrays to CSV format with customizable delimiters
Generate harmonious color palettes — complementary, analogous, triadic schemes
Check WCAG color contrast ratios for accessibility compliance (AA/AAA)
Convert SQL CREATE TABLE statements to JSON Schema definitions
Convert multiple Unix timestamps or dates in batch — paste a list and convert all at once
Generate RFC 4122 compliant UUIDs (v4)
Generate secure random passwords with configurable character sets
Generate placeholder lorem ipsum text by words, sentences or paragraphs
Generate QR codes from text, URLs or any data
Create and edit Markdown tables visually
Generate placeholder images with custom size, color and text for mockups
Convert typed text into realistic handwriting-style images
Build cron expressions visually — select schedule with a friendly UI
Create and sign JSON Web Tokens with custom claims and algorithms
Convert text to ASCII art with various font styles (FIGlet)
Decode and inspect JSON Web Tokens
Test and debug regular expressions with match highlighting
Compare two texts and highlight differences
Parse and explain cron expressions in plain language
Parse a URL into its components: protocol, host, path, query params
Validate JSON data against a JSON Schema
Inspect Unicode characters — code points, UTF-8 encoding and categories
Convert between numeric and symbolic Unix file permissions
Calculate and convert aspect ratios for images and video
Test JSONPath expressions against JSON data
Validate and format YAML documents with syntax error highlighting
Compare two JSON documents and highlight structural differences
Paste OpenAPI (Swagger) YAML or JSON and browse endpoints interactively
Write HTML/CSS/JS and see live preview in a sandboxed iframe
Generate URL-friendly slugs from text
Convert text between camelCase, snake_case, kebab-case and more
Count words, characters, lines, sentences and reading time
Parse query strings into key-value pairs or build them back
Sort, deduplicate and normalize lines of text
Calculate subnet masks, IP ranges and host counts from CIDR notation
Browse and search all HTTP status codes
Parse and analyze IPv4/IPv6 addresses — type, class, binary representation
Parse user agent strings to identify browser, OS and device
Generate CSS gradient backgrounds — linear, radial, and conic
Create CSS box shadows with multiple layers and live preview
Generate CSS border-radius with individual corner controls
Visual CSS Flexbox layout generator with live preview
Visual CSS Grid layout generator with customizable rows and columns
Generate HTML meta tags for SEO, Open Graph, and Twitter Card
Generate pure CSS triangles in any direction and size
Create CSS text-shadow effects with multiple layers
Generate CSS filter effects — blur, brightness, contrast, and more
Generate responsive CSS media queries for common breakpoints
Create CSS keyframe animations with visual timeline editor
Convert plain CSS to Tailwind CSS utility classes
Generate HTML tables with customizable rows, columns, and styling
Generate favicons in multiple sizes from text, emoji, or image
Preview how your Open Graph images will look on social media