Free Browser TCB Tools: Format, Convert, Encode & Generate
Fast, Free, and 100% Private
Everything runs in your browser.
TCB Tools is a collection of fast, private online tools for digital media and data. Convert images, videos, CSV, and JSON files, or generate cipher codes — all processed locally in your browser, with nothing ever sent to a server.
Converters#
Tools for converting files from one format to another.
Image Converter
Convert images between JPEG, PNG, GIF, and WebP formats with quality control and resize options. Completely client-side image conversion tool with no uploads, watermarks, or file size limits. Fast, secure, and free.
Image Compressor
Compress images using lossy and lossless methods to reduce file size while maintaining visual quality. Fully client-side, no uploads, and privacy-focused.
EXIF Data Viewer
Free online EXIF data viewer tool. Extract and view image metadata directly in your browser including camera settings, GPS location, and more. No upload required - private & secure.
Audio Converter
Convert between MP3, WAV, and OGG formats with precision trimming and waveform visualization. Free, secure tool with client-side processing - your audio never leaves your device.
Unit Converter
Convert units instantly between length, weight, temperature, volume, area, and other common measurements. All calculations happen in your browser securely and offline.
Subtitle Converter
Convert, validate, and preview subtitle files between SRT and VTT formats instantly in your browser. Fix timing issues and formatting errors securely without uploading your files.
JSON Converter
Convert YAML, TOML, INI, XML, CSV, JSON5, HJSON to JSON locally in your browser.
YAML Converter
Convert JSON, TOML, INI, XML, CSV, JSON5, HJSON to YAML locally in your browser.
TOML Converter
Convert JSON/YAML/INI/XML to TOML in the browser.
INI Converter
Convert JSON/YAML/TOML/XML to INI locally.
CSV/TSV Converter
Convert JSON/YAML/TOML/INI/XML to CSV or TSV locally.
CSV Tools
Import, parse, convert, sort, filter, and clean CSV or TSV files entirely in your browser. Map columns, use custom delimiters, preview data, and export results safely without uploading files.
WebP → PNG/JPEG
Convert WebP images to PNG or JPEG in your browser. Private, fast, and no upload required.
HEIC → JPEG
Convert HEIC (iPhone) images to JPEG in the browser. No upload — works locally.
Media Tools#
Image and video utilities: resize, crop, GIF tools, SVG optimizer, and metadata viewers.
Animated GIF Creator / Converter
Create animated GIFs from images or convert videos to GIF entirely in the browser.
SVG Optimizer / Cleaner
Optimize and clean SVG files in the browser: remove metadata, reduce precision, and minify paths.
Color Palette Extractor
Extract dominant colors and palettes from images in the browser. Download palette as JSON or ASE.
Video → GIF Converter
Convert short video clips to animated GIFs with trimming and frame rate controls. Fast, private, browser-based conversion tool.
Video Metadata Viewer
Inspect video metadata including codec, resolution, framerate, and duration. All processing happens in your browser privately.
Formatters#
Tools for formatting and beautifying code and data.
JSON Formatter
Format, validate, and beautify JSON data with syntax highlighting, error detection, and minification. Professional JSON formatter for developers with real-time validation and schema support. Completely client-side processing.
GraphQL Formatter
Format, lint, and beautify GraphQL queries and schemas with clear indentation, syntax highlighting, and error hints. Fully browser-based, fast, and private.
XML Formatter
Format, minify, and validate XML online—fast, private, and 100% in-browser. No signup, syntax highlighting, error detection, clipboard copy, or download.
HTML Formatter
Format, minify, and validate HTML online. Fast, private, and 100% in-browser with syntax highlighting and error detection.
YAML Formatter
Format and validate YAML online. Fast, private, and 100% in-browser with syntax highlighting and line-based error detection.
TOML Formatter
Format and validate TOML online. Fast, private, and 100% in-browser with syntax highlighting and error detection.
INI Formatter
Format and validate INI files online. Fast, private, and 100% in-browser with syntax highlighting and error detection.
Encoder#
Tools for encoding and decoding data formats.
JWT Decoder
Parse and decode JSON Web Tokens to analyze header, payload, and signature information. View standard, timing, and custom claims securely in your browser.
NATO Phonetic Converter
Convert text to NATO phonetic alphabet (Alpha, Bravo, Charlie) with our free online converter. Perfect for military, aviation, and radio communication.
ROT13 & Caesar Cipher
Free online Caesar cipher decoder and ROT13 tool. Instantly encrypt or decrypt text with any shift value. Educational cryptography tool with instant results.
Base64 Encoder/Decoder
Encode and decode Base64 for text and files with instant previews. 100% client-side processing, no uploads, completely private and secure.
URL Encoder/Decoder
Encode and decode URLs instantly with percent-encoding for safe web transport, query strings, and API usage. Professional URL encoding tool for developers with real-time processing and validation. All processing happens locally in your browser.
Unicode Inspector
Free online Unicode inspector tool. Analyze any character to reveal codepoints, names, and properties. Check Unicode blocks, categories, and encoding variations in your browser.
Encryption & Decryption
Secure your sensitive info with military-grade AES, RSA, and ChaCha20 encryption. Encrypt or decrypt text entirely in your browser — fast, private, and free.
PGP Key Generator
Generate secure PGP key pairs directly in your browser with our free tool. Create public and private keys for encrypting messages and files with OpenPGP standards.
Generators#
Tools for generating various types of data and files.
QR Code Generator
Generate and scan QR codes for URLs, text, WiFi networks, and contact cards instantly. Fully client-side QR code generator and scanner with PNG/SVG export options. Secure, free, and no registration required.
Barcode Generator
Generate professional barcodes in Code128, EAN-13, UPC-A, and Code39 formats. Export as PNG or SVG with instant rendering. Free, secure, client-side processing.
Hash Generator
Generate and verify MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes for text and files entirely in your browser. Fast, private, and secure client-side processing.
UUID Generator
Generate UUID v1 (time-based) and v4 (random) instantly in your browser. Professional UUID generator for developers, testing, and database identifiers. Completely offline with bulk generation support.
LaTeX Previewer
Write LaTeX math and formulas and preview them instantly in your browser. No server uploads; fully client-side rendering for privacy and speed.
Date & Time Tools
Calculate durations between dates, convert UNIX timestamps, and switch between timezones using our free, browser-based date and time tools. Fully client-side processing ensures privacy and fast performance.
Lottery Ticket Generator
Generate random lottery numbers for famous lotteries worldwide including Powerball, Mega Millions, EuroMillions, UK Lotto, and more. Free lottery number generator working entirely in your browser for privacy.
Bingo Card Generator
Create custom bingo cards with numbers or words. Generate printable bingo cards for events, education, and games. Free online bingo card maker with customizable grid sizes and content.
Random Generators
Generate realistic fake identities with names, addresses, phone numbers, and emails in 60+ languages and locales. Perfect for testing, development, and QA. Completely private - all data generated in your browser.
Dice Roller
Virtual dice roller that returns developer idea prompts (algorithms, puzzles, math). All processing happens in the browser.
Color Tools
Convert colors between HEX, RGB, and HSL formats. Generate palettes and check contrast ratios with our free, browser-based color tools. All processing is done locally for privacy.
Color Blindness Simulator
Free online color blindness simulator. Test designs for accessibility by previewing how they appear to people with protanopia, deuteranopia, tritanopia and other color vision deficiencies.
Help & FAQ#
General help and frequently asked questions.
Why Choose TCB Tools?
Built by professionals, for professionals
Lightning Fast
Client-side processing ensures instant results without server delays. Your data never leaves your browser.
Privacy First
All processing happens locally in your browser. No data is uploaded to any server, ensuring complete privacy.
Always Free
No hidden costs, no subscriptions, no limits. Professional tools that remain free forever.
Have Questions?
Find answers to common questions about TCB Tools
Frequently Asked Questions
Get answers about security, privacy, pricing, browser compatibility, commercial use, and more. Our comprehensive FAQ covers everything you need to know about using TCB Tools.
🔒 Security & Privacy
Learn about our client-side processing and data protection
💰 Free Forever
Understand our commitment to keeping tools completely free
🛠️ Tool Support
Get help with features, limitations, and usage