Developer Tools
Free tools for developers, sysadmins, and DevOps engineers.
Count tokens for GPT, Claude, Gemini, and other supported models.
Encode, decode, and scan Base64 tokens from any text, logs, or files.
Explain any cron expression in plain English with next run times.
Convert timestamps to dates and back, with live ticker and timezone support.
Encode and decode URLs with RFC 3986 and form-encoded style support.
Convert old/raw YABS text output into import-ready JSON.
Audit package.json, composer.json, requirements.txt, package-lock.json, and composer.lock for outdated dependencies, vulnerabilities, and upgrade risk.
Compare package-lock.json and composer.lock snapshots to audit dependency changes between deploys, releases, and CI runs.
Estimate page size and plan proxy bandwidth, requests, and storage.
Check which bots and crawlers can access your website via robots.txt
Trace redirect chains with status codes, headers, cookies, timing, and SEO signals.
Calculate downtime allowance, check SLA compliance, and estimate revenue impact.
Generate UUID v1/v4/v7, ULID, Nano ID, Short ID, and more in bulk.
Generate strong, secure passwords with customizable length and character sets.
Generate live authenticator codes from browser-local 2FA setup keys.
Check availability of up to 10 domains from text or CSV.