Free Online Developer & Image Tools
Fast, secure, and 100% client-side utilities.
Pixel Color Dropper
Extract exact color values (HEX, RGB, HSL, CMYK) from any image online with a magnifying loupe.
Open ToolProfile Photo Cropper
Crop, rotate, and resize avatars/photos to perfect dimensions for WhatsApp, Instagram, LinkedIn, and YouTube.
Open ToolCSV to JSON Converter
Parse values separated by commas into structured JSON arrays instantly in your local browser sandbox.
Open ToolJSON to CSV Converter
Convert and format complex JSON arrays or nested objects into standard, spreadsheet-compatible CSV files.
Open ToolMarkdown Live Previewer
Write Markdown markup text and preview the fully compiled HTML representation dynamically side-by-side.
Open ToolHTML to Markdown Converter
Convert HTML markup scripts or web page code into clean, well-formatted Markdown documentation syntax.
Open ToolImage to WebP Converter
Compress and convert JPEG/PNG images to modern WebP format with quality adjustment sliders.
Open ToolWebP to PNG Converter
Convert Google WebP images back to transparent PNG files with full pixel quality preservation.
Open ToolUnix Timestamp Converter
Convert Epoch seconds and milliseconds to UTC, local time, and global timezones, or vice versa.
Open ToolText Binary & Morse Encoder
Translate text to binary digits and international Morse code with live audio playback and oscilloscope.
Open ToolAVIF Converter
Convert your images to next-gen AVIF format or decode AVIF back to PNG/JPEG. 100% offline, privacy-first conversion running right in your browser via WebAssembly.
Open ToolBarcode Generator
Generate 100% offline, privacy-first barcodes (Code 128, EAN, UPC) for local businesses without uploading product data to third-party servers. Download as PNG or SVG.
Open ToolBase64 Encoder & Decoder
Encode binary data or UTF-8 strings into Base64 formats, or convert Base64 strings back to text instantly. 100% client-side logic.
Open ToolBatch Watermark Applier
Apply text or image watermarks to multiple photos at once. Works 100% offline in your browser for absolute privacy.
Open ToolCode Minifier Pro
Unify your code minification workflow. Minify HTML, CSS, and JS entirely locally in your browser with zero server transmission.
Open ToolColor Format Converter
Convert color palettes instantly between HEX, RGB, HSL, and CMYK models. Generates contrast ratings and design palettes offline.
Open ToolCron Job Generator
Generate standard crontab timing expressions visually. Build minutes, hours, days, and weekdays into cron formatting with ease.
Open ToolCrypto Hash Generator
Calculate cryptographic hash values for text inputs and files using MD5, SHA-1, SHA-256, and SHA-512. Secure 100% offline generation.
Open ToolLocal EXIF Metadata Extractor
Extract EXIF metadata from images securely in your browser. No server uploads, guaranteeing complete privacy for your photos.
Open ToolFavicon Bundle Generator
Generate a complete favicon bundle (.ico, .png, apple-touch-icon) from a single image natively in your browser.
Open ToolJWT Encoder & Decoder
Encode and decode JSON Web Tokens (JWT) instantly in your browser. Build JWTs from header and payload, or decode existing tokens. Fully private client-side execution.
Open ToolOffline Pomodoro Timer
A privacy-friendly, fully offline Pomodoro Timer. Boost your productivity with customizable work and break intervals that run entirely in your browser.
Open ToolQR Code Generator
Generate static custom QR codes offline with variable foreground/background colors and sizes. Direct downloads.
Open ToolSecure Password Generator
Generate strong, secure, and random passwords client-side. Completely offline with customizable length, symbols, numbers, and similarity filters.
Open ToolSVG to PNG Converter
Convert vector SVG codes or files into pixel-based PNG images locally. Configure dimensions and export formats offline.
Open ToolText Diff Viewer
Compare original and modified texts line-by-line. Highlights insertions, deletions, and differences instantly in green and red.
Open ToolTyping Speed Test
Test your typing speed and accuracy in words-per-minute (WPM) dynamically. Free interactive client-side typing simulation.
Open ToolUUID & GUID Generator
Generate single or bulk cryptographically secure UUID v4 / GUID values offline. Customize format, braces, case style instantly.
Open ToolWord Counter & Analyzer
Count characters, words, sentences, reading speed timings, and run keyword density analysis on any text block offline.
Open ToolYAML to JSON Converter
Convert standard YAML strings to structured JSON format instantly. Simple local parser to transform settings sheets client-side.
Open ToolAAC to MP3 Converter
100% free tool to convert AAC to MP3 format in bulk. Runs entirely on-device for absolute privacy—no servers, no uploads.
Open ToolAudio Format Converter
100% free tool to transcode, downsample, or convert audio files in bulk. Runs entirely on-device for absolute privacy—no servers, no uploads.
Open ToolBrowser Audio/Voice Recorder
Capture professional-grade microphone input with real-time waveform visuals and download options.
Open ToolClient-Side File Encryptor/Decryptor
Provide absolute privacy for sensitive data by encrypting files locally using bank-grade cryptography.
Open ToolClient-Side Video Compressor
Reduce video file sizes locally in the browser to protect user privacy and eliminate server upload times.
Open ToolFLAC to MP3 Converter
100% free tool to convert FLAC to MP3 format in bulk. Runs entirely on-device for absolute privacy—no servers, no uploads.
Open ToolFLAC to WAV Converter
100% free tool to convert FLAC to WAV format in bulk. Runs entirely on-device for absolute privacy—no servers, no uploads.
Open ToolWorld Geography Country-Naming Trainer
Test and train world geography recall speed on an interactive, highly responsive visual map interface.
Open ToolImage-to-SVG Vectorizer
Trace pixel-based raster graphics into clean, infinitely scalable vector paths without any AI overhead.
Open ToolM4A to MP3 Converter
100% free tool to convert M4A to MP3 format in bulk. Runs entirely on-device for absolute privacy—no servers, no uploads.
Open ToolM4A to WAV Converter
100% free tool to convert M4A to WAV format in bulk. Runs entirely on-device for absolute privacy—no servers, no uploads.
Open ToolMKV to MP4 Converter — 100% Free, Offline & Unlimited
Convert MKV to MP4 directly in your browser — 100% free, no subscription, no upload limits, no sign-up. Your files never leave your device. Unlimited conversions, forever.
Open ToolMOV to MP4 Converter — 100% Free, Offline & Unlimited
Convert MOV to MP4 directly in your browser — 100% free, no subscription, no upload limits, no sign-up. Your files never leave your device. Unlimited conversions, forever.
Open ToolMP3 to AAC Converter
100% free tool to convert MP3 to OGG format in bulk. Runs entirely on-device for absolute privacy—no servers, no uploads.
Open ToolMP3 to FLAC Converter
100% free tool to convert MP3 to FLAC format in bulk. Runs entirely on-device for absolute privacy—no servers, no uploads.
Open ToolMP3 to M4A Converter
100% free tool to convert MP3 to M4A format in bulk. Runs entirely on-device for absolute privacy—no servers, no uploads.
Open ToolMP3 to OGG Converter
100% free tool to convert MP3 to OGG format in bulk. Runs entirely on-device for absolute privacy—no servers, no uploads.
Open ToolMP3 to WAV Converter
100% free tool to convert MP3 to WAV format in bulk. Runs entirely on-device for absolute privacy—no servers, no uploads.
Open ToolMP4 to MKV Converter — 100% Free, Offline & Unlimited
Convert MP4 to MKV directly in your browser — 100% free, no subscription, no upload limits, no sign-up. Your files never leave your device. Unlimited conversions, forever.
Open ToolMP4 to MOV Converter — 100% Free, Offline & Unlimited
Convert MP4 to MOV directly in your browser — 100% free, no subscription, no upload limits, no sign-up. Your files never leave your device. Unlimited conversions, forever.
Open ToolMP4 to WebM Converter — 100% Free, Offline & Unlimited
Convert MP4 to WebM directly in your browser — 100% free, no subscription, no upload limits, no sign-up. Your files never leave your device. Unlimited conversions, forever.
Open ToolOGG to MP3 Converter
100% free tool to convert OGG to MP3 format in bulk. Runs entirely on-device for absolute privacy—no servers, no uploads.
Open ToolPDF Merger, Splitter & Editor
Rearrange, extract, or combine pages from sensitive PDF documents completely client-side.
Open ToolRandom Wheel Spinner
Provide a gamified, physics-based decision wheel for raffles, giveaways, and naming pickers.
Open ToolVideo Audio Extractor
Instantly strip the audio track out of any video file to download as a standalone audio file.
Open ToolClient-Side Video to GIF Converter
Convert video segments into highly optimized, perfectly looping animated GIFs entirely offline.
Open ToolWAV to FLAC Converter
100% free tool to convert WAV to FLAC format in bulk. Runs entirely on-device for absolute privacy—no servers, no uploads.
Open ToolWAV to MP3 Converter
100% free tool to convert WAV to MP3 format in bulk. Runs entirely on-device for absolute privacy—no servers, no uploads.
Open ToolWebM to MP4 Converter — 100% Free, Offline & Unlimited
Convert WebM to MP4 directly in your browser — 100% free, no subscription, no upload limits, no sign-up. Your files never leave your device. Unlimited conversions, forever.
Open ToolWorld Capitals Matching Game
Test your geography knowledge by matching country names to their capital cities in this interactive learning tool.
Open ToolWorld Country & Flags Matching Game
Test your geography knowledge by matching country names to their corresponding flags in this interactive learning tool.
Open Tool