Fast, private online utilities for everyday tasks
Zero sign-up. No tracking of your input. Most tools run entirely in your browser for performance and privacy.
🔑 Password Generator
Create strong random passwords with custom length and character sets.
🧩 Base64 Encode / Decode
Convert text to and from Base64, with URL-safe option. Client-side.
📋 JSON Formatter / Validator
Prettify, minify and validate JSON with clear error messages.
🔒 Hash Generator (MD5/SHA)
Instant MD5, SHA-1, SHA-256. Multiple algorithms at once.
🆔 UUID Generator
Generate v4 UUIDs in bulk and copy in one click.
📜 JWT Decoder & Verifier
Decode header/payload and verify HS256/RS256 signatures in the browser.
🔗 URL Encode / Decode
Encode/decode full URLs or components and parse query parameters.
🧠 Regex Tester
Live matches, groups, and highlighting for JS-compatible regex.
⏱️ Timestamp ↔ Date
Convert UNIX seconds/milliseconds to Local/UTC and back.
🔄 YAML ↔ JSON
Convert between YAML and JSON. Common structures supported.
Why Mini Tools?
Mini Tools is a lightweight set of developer utilities built with a privacy-first approach. Your input never leaves the browser, and most tools work fully client-side for speed and security. Use it for everyday tasks: generating passwords, encoding in Base64, formatting JSON, computing hashes, creating UUIDs, decoding and verifying JWTs, encoding URLs, testing regular expressions, converting UNIX time, and transforming YAML↔JSON.
Designed for web developers, QA, DevOps, and power users who want fast, dependable tools with zero bloat. We iterate based on feedback and will add more utilities over time.