TCB Tools
Fast, Free, and 100% Private
Everything runs in your browser.
TCB Tools is a collection of professional-grade online utilities designed with privacy and speed at the core. Unlike traditional web tools, nothing you do is ever sent to a server — all processing happens directly on your device.
No sign-ups. No watermarks. No limits. Just powerful tools you can trust.
Converters
Tools for converting files from one format to another.
Image Converter
Convert images between JPEG, PNG, GIF, and WebP with quality and resize options. Fully client-side, secure, and fast with no uploads or watermarks.
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.
Audio Converter
Convert between MP3, WAV, and OGG formats with precision trimming and waveform visualization. Our free, secure tool offers fast, client-side audio conversion, ensuring your data remains private and your files are processed instantly in your browser.
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.
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.
Formatters
Tools for formatting and beautifying code and data.
JSON Formatter
Format, validate, and beautify JSON data with syntax highlighting, schema hints, and error detection entirely in your browser. Fast, private, and secure 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 documents instantly in your browser. Enjoy pretty-printing, error hints, and privacy-focused client-side processing.
Encoder / Decoder
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.
Base64 Encoder/Decoder
All processing happens locally in your browser — private, fast, and free.
URL Encoder/Decoder
Encode and decode URLs instantly with percent-encoding for safe web transport, query strings, and API usage. All processing happens in your browser, offline and securely.
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, secure, and free to use.
Barcode Generator
Generate barcodes in modern formats like Code128, EAN-13, UPC-A, and Code39, with client-side export to PNG or SVG. Our free online tool is fast, secure, and works entirely in your browser without uploading data.
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. Perfect for development, testing, and creating unique identifiers offline.
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.
Design & Utility
Tools for working with design assets and improving productivity.
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