Tools
Developer tools
A small suite of free tools, each served by my own API. Built to be genuinely useful - and to show the backend behind them.
Have a project in mind? I'm available for freelance and full-time work, remotely worldwide - let's talk.
Lorem Ipsum Generator
Generate placeholder text by paragraphs, sentences, words, characters or list items - as plain text or ready-to-paste HTML, with an optional classic "Lorem ipsum" start.
Open →Live Collaboration Room
Create a room, share the link, and everyone sees live cursors, a shared notepad and reactions in real time over WebSockets. A small demo of the real-time systems I build.
Open →URL Shortener
Shorten a link and track clicks - total, a 7-day trend and top referrers, computed in SQL. Links show a safe destination preview before redirecting.
Open →QR Code Generator
Turn any URL or text into a crisp QR code, generated server-side. Download as SVG or PNG.
Open →Instant Mock API
Design a resource and get a live REST endpoint serving realistic, deterministic fake data - with pagination, filtering, sorting, search and simulated writes. Prototype a front end before the backend exists.
Open →HTTP Request Builder
A mini Postman: build any request (method, headers, body), send it server-side, and inspect the full response - status, headers, timing and body. SSRF-safe.
Open →JWT Decoder & Verifier
Decode a JSON Web Token to inspect its header and payload, check expiry, and verify the signature (HS* with a secret, RS*/ES* with a public key). Decoding stays in your browser.
Open →Cron Expression Explainer
Paste a cron expression to get a plain-English description and the next five run times in any timezone.
Open →Unix Timestamp Converter
Convert a Unix timestamp (seconds or milliseconds) to a readable date and back - ISO, UTC, local and relative time, plus a live current epoch.
Open →Email Validator
Check an email address: valid syntax, a live MX-record lookup to see if the domain accepts mail, and disposable/role-based flags.
Open →DNS & WHOIS Lookup
Resolve a domain’s DNS records (A, AAAA, CNAME, MX, NS, TXT) and registration details (registrar, created, expiry) via RDAP.
Open →Password Breach Checker
Check if a password appears in a known data breach - privately. Hashed in your browser, only a 5-char prefix is sent (k-anonymity).
Open →Live Status Monitor
A real uptime monitor - endpoints checked every 60s with uptime % and response-time history. Add any URL to watch it live for 24h.
Open →One-Time Secret
Share a password or note via a link that self-destructs after one view. Encrypted in your browser - the key never reaches the server.
Open →Webhook / Request Inspector
Get a unique URL and watch incoming HTTP requests land in real time over a WebSocket - method, headers, query and body.
Open →Endpoint Inspector
HTTP status, response time, redirect chain, TLS certificate and a security-header grade for any URL. SSRF-safe.
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