Developer Tools
49 free utilities for everyday dev work, no account required, nothing stored for anonymous runs.
Every tool below is free, forever: format and encoding helpers (Base64, JSON, YAML, hashes, JWTs, regex), text tools with optional AI enhancement, and network inspectors for DNS, SSL certificates, HTTP headers, and WHOIS. Sign in to keep a history of your last 50 runs per tool and call any tool programmatically with a free Developer Tools API key, but no login is ever required to use them here.
What you can do here
These 49 utilities cover the small jobs that fill a developer's day, grouped into three families. Format & Encoding handles the everyday essentials, including Base64 and URL encoding, SHA/MD5 hashing and HMAC signing, conversion between JSON, YAML, TOML and XML, a live regex tester, UUID and secure-password generation, and a JWT decoder. Format with AI layers an optional AI pass onto text tools, such as a diff explainer, readability scoring, and slug transliteration for Indic and other scripts, with 10 free AI runs a day. HTTP & Network inspects the live internet: DNS records and worldwide propagation, SSL certificate details, security headers, WHOIS ownership, Open Graph previews, and robots.txt parsing.
They are built and run by Velona, an INR-native AI API gateway for Indian developers and students. 300+ AI models behind one key, billed in rupees with UPI top-up from ₹10 and no foreign card. The tools themselves are free forever and require no account. Signing in only adds saved run history and a free Developer Tools API key so you can script them.
Frequently asked questions
Are these developer tools free?
Yes, all 49 tools are free with no limits and no account. Only the optional AI enhancements draw on paid models, and those include 10 free runs per day.
Can I call these tools from my own code?
Yes. Create a free account to get a Developer Tools API key (no wallet balance required) and call any tool over HTTP from your scripts or CI.
Is anything I paste stored?
No. Anonymous runs store nothing. Signed-in users get a record that a tool was run, but not the input or output content.