Developer tools,
right in your browser.
SnipTools is a free collection of 19+ browser-based utilities built for software developers. Decode JWTs, format JSON, test regular expressions, generate UUIDs, convert timestamps, and more — all running client-side with zero data collection. Your tokens, code, and data never leave your device.
Auth
Decode, inspect, and generate JSON Web Tokens for testing authentication flows. Debug OAuth issues, verify token claims, and prototype auth integrations — all without exposing your tokens to third-party services.
Utilities
Everyday developer essentials: cron expression builder, UUID generator, Unix timestamp converter, and chmod permission calculator. The small tools you reach for constantly, now available instantly in your browser.
Text
Test regular expressions with live match highlighting, compare text side-by-side with diff highlighting, and preview Markdown with full GitHub Flavored Markdown support. Tools for every text processing task in your development workflow.
Data
Format, validate, search, and convert structured data. Whether you are working with JSON API responses, SQL queries, or YAML configuration files, these tools help you read, debug, and transform data without leaving your browser.
JSON Formatter
Format, validate, and minify JSON instantly
JSON Search & Filter
Search by key or filter arrays in JSON data
JSON Viewer
Explore JSON with collapsible tree view and structure info
SQL Formatter
Format and beautify SQL queries instantly
YAML ↔ JSON Converter
Convert between YAML and JSON formats instantly
Encoding
Convert between Base64, URL encoding, and cryptographic hash formats. Essential for working with APIs, data URIs, webhook signatures, and any system that requires data transformation between binary and text representations.
Design
Convert colors between HEX, RGB, HSL, OKLCH, and Tailwind CSS classes. Check contrast ratios for WCAG accessibility compliance. Built for frontend developers and designers who work across color formats daily.
Git
Generate complex Git commands with guided explanations for every flag. Stop Googling git rebase syntax — build the exact command you need with clear descriptions of what each option does and when to use it.
Why SnipTools?
100% client-side
Every tool runs entirely in your browser using JavaScript and Web APIs. Your tokens, code, and data never leave your device — there is no server processing, no data collection, and no risk of leaking sensitive information. Even after the page loads, most tools work fully offline.
No sign-up required
All tools are free to use with no account creation, no email verification, and no usage limits. Open a tool, paste your data, and get results instantly. We believe developer utilities should be frictionless — you should not need to create an account just to format JSON or decode a JWT.
Built for developers
SnipTools focuses on the small utilities that developers reach for every day — decoding JWTs, formatting JSON, testing regex, converting timestamps, and more. Each tool is designed to do one thing well with a clean, distraction-free interface optimized for keyboard-driven workflows.
How it works
SnipTools is built with SvelteKit and deployed on Cloudflare Pages, delivering fast load times from edge servers around the world. Every page is pre-rendered at build time for instant first paint, and all tool logic runs in your browser using standard Web APIs like the Web Crypto API, TextEncoder, and DOMParser.
When you paste a JWT token, format a JSON payload, or generate a hash, the computation happens locally in JavaScript. There is no backend API, no database, and no server-side processing. This architecture means your sensitive data — API keys, auth tokens, database credentials, proprietary code — stays on your machine at all times.
Each tool is loaded on demand through route-based code splitting, so you only download the code for the tool you are using. The entire site works offline once loaded, making it reliable even on spotty connections or during air-gapped development sessions.
Getting started
Using SnipTools is straightforward: pick a tool from the sidebar or the grid above, paste your input, and see results instantly. There is no configuration, no setup, and nothing to install. Here are some common starting points:
- • Debugging an API response? Use the JSON Formatter to pretty-print the response, then the JSON Search tool to find specific keys in deeply nested structures.
- • Investigating an auth issue? Paste your bearer token into the JWT Decoder to inspect claims, check expiration, and verify the token structure without exposing it to a third party.
- • Writing a validation pattern? Build and test your regex in the Regex Tester with real-time match highlighting and capture group inspection before copying it into your code.
- • Setting up a scheduled job? Use the Cron Explainer to build your cron expression visually and preview the next run times before deploying.
- • Working with file permissions? The Chmod Calculator lets you toggle permission bits interactively and see both numeric and symbolic notation in real time.
About SnipTools
SnipTools is a collection of 19 free developer utilities built with privacy and speed in mind. Whether you need to decode a JWT from a production debug session, format a messy JSON payload from an API response, or generate a cron expression for a scheduled job, SnipTools gives you the answer in seconds — without installing anything or trusting a third party with your data.
Every tool is built to be immediately useful. There is no onboarding flow, no account wall, and no feature gating. Paste your data, get your result, and move on with your work. We focus on the developer experience: keyboard shortcuts, instant feedback, clear error messages, and clean output that is easy to copy.
The site is built with SvelteKit and hosted on Cloudflare Pages for fast global delivery. All tools are statically rendered and work offline after the initial page load. We use no analytics trackers and collect no personal data — see our privacy policy for full details. Learn more on our about page.