Every developer needs quick utilities. Here are 8 browser-based tools that work instantly — no install, no signup, no BS.
1. Password Generator
Generate cryptographically secure passwords with custom length, symbols, and entropy display.
When you need it: Creating strong credentials for new accounts or API keys.
2. Word & Character Counter
Real-time word, character, sentence, and paragraph counts with reading time.
When you need it: Hitting blog post targets, tweet limits, or meta description lengths.
3. Regex Tester
Write regex patterns with real-time highlighting on sample text. Shows match groups.
When you need it: Validating email formats, parsing logs, or extracting data.
4. JSON Formatter & Validator
Paste messy JSON → get pretty-printed, syntax-highlighted output with validation errors.
When you need it: Debugging API responses, config files, or log payloads.
5. Hash Generator (MD5/SHA)
Generate MD5, SHA-1, SHA-256, SHA-512 hashes from any input text.
When you need it: Verifying file integrity, creating checksums, or comparing digests.
6. SVG Optimizer
Paste SVG code → get optimized output with size reduction percentage.
When you need it: Shrinking icon sets, cleaning Figma exports, or improving page load.
7. HTML Entity Encoder
Convert special characters to HTML entities and back. Handles named & numeric refs.
When you need it: Sanitizing user input, fixing display issues, or embedding code in HTML.
8. JWT Decoder
Paste a JWT → see header, payload, and expiration decoded with color-coded sections.
When you need it: Debugging auth flows, checking token claims, or verifying expiration.
Why browser-based?
- ✅ No install
- ✅ No signup
- ✅ No data collection
- ✅ Works offline (after first load)
All tools are open source: GitHub
What tool do you wish existed as a simple browser page? Drop it in the comments!
🛠️ Try all tools free: maxmini0214.github.io
📦 Get the full toolkit bundle: Gumroad
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