Small tools, given away.
Free, browser-first utilities I built for myself and kept public — no ads, no accounts, no tracking beyond basic analytics.
Base64 Encoder / Decoder
Encode plain text to Base64 or decode Base64 back to text, instantly in the browser. Supports Unicode and emoji.
Web toolCron Expression Explainer
Paste a cron expression and get a plain-English description plus the next five firings. Zero dependencies, runs in your browser.
Web toolENV Diff
Compare two .env files locally in your browser. See added, removed, and changed keys at a glance — values masked by default. Nothing leaves the page.
Web toolJSON Formatter & Validator
Paste your JSON to format, validate, and inspect it instantly in the browser.
Web toolJWT Decoder
Paste a JSON Web Token and see its header, payload, and expiry decoded locally. Nothing ever leaves your browser.
Web toolMermaid Renderer
Paste Mermaid syntax and see the diagram render live. Export as SVG or PNG. Runs entirely client-side — only the Mermaid library is loaded from a CDN.
Web toolMonolith or Microservices?
A short, honest decision tree for the monolith vs microservices call — driven by team, domain and platform constraints, not by hype.
Web toolSQL Formatter
Paste messy SQL, get clean SQL. Preserves string literals and comments, uppercases keywords, puts each major clause on its own line.
Web toolSQL Query Helper
An interactive quick-reference for common SQL query patterns. Search, browse, and copy snippets instantly.
Web toolLLM Token Estimator
Quick character-based token estimates for GPT-4 / 4o, Claude, and Llama. Paste text and get a ballpark count without shipping it to an API.