Expert Web Tools
Provides 30+ free, browser-based utilities for developers, including DNS lookup, JSON validation, JWT decoding, Dockerfile generation, WAF rule building, regex generation, and PDF tools, all processing data locally.
Launch screenshots from Product Hunt, May 2026
A suite of 30+ free, browser-based utilities for developers, covering networking, data, AI, text, media, and calculations. It solves the problem of needing quick, private tools without server uploads or sign-ups. The target audience includes software engineers, DevOps professionals, and web creators. It is positioned as a privacy-first alternative to cloud-based tools, with all processing done locally in the browser using JavaScript and WebAssembly, and no logging or accounts.
Key features
- DNS lookup with SPF/DMARC analysis
- Text diff with side-by-side compare
- IP tools: subnet calculator, CIDR splitter
- Header view and WAF bypass
- WHOIS lookup via RDAP
- JSON validate, beautify, auto-repair
- JWT decoder with timestamp debug
- Base64 encode/decode with Data URIs
- Hash and HMAC generation (MD5, SHA)
- cURL to code conversion (Python, Fetch, etc.)
- Dockerfile and Compose generator
- WAF rule builder for Cloudflare, NGINX, etc.
- CSP validator and baseline generator
- Unix timestamp converter
- Cron expression generator and parser
- AI chatbot for programming answers
- Regex builder from plain English
- QR code generator for URLs, Wi-Fi, vCards
- Secure password and passphrase generator
- Lottery number picker
- Subtitle fixer (SRT/VTT)
- PDF merge, split, unlock, compress
- HTML to text extractor
- Word, character, sentence analytics
- Case converter (UPPER, lower, camelCase)
- Weather lookup
- Image converter and compressor
- Unit converter
- Scientific calculator
- Tip calculator
- No social media activity within the last 30 days
GTM channels
- No GTM activity detected
ICP
- Software developers
- DevOps sre teams
- Engineering teams