Purpose-built for modern engineering
Developer utilities.
AI decisions, clarified.
Fast, private tools for everyday development—plus practical calculators for planning AI infrastructure and costs.
Browser-local by default No sign-up required
Everyday utilities
Browse all tools Small tools. Zero friction.
JSON Formatter
Format, validate, and inspect JSON instantly.
Unix Timestamp
Convert Unix time to readable dates and back.
JWT Decoder
Inspect token headers and payloads locally.
Cron Parser
Understand schedules in plain English.
Base64
Encode or decode text without an upload.
UUID Generator
Generate secure UUIDs in a single click.
AI calculators
Plan with numbers, not guesses.
Make informed infrastructure and budget decisions before you deploy.
Infrastructure
LLM VRAM Calculator
Estimate model weights, KV cache, and total GPU memory across precisions and context sizes.
Estimate VRAM24.6 GBESTIMATED VRAM
BudgetingAPI Cost Calculator
Compare model pricing and forecast spend from request volume, token usage, and cache rates.
Calculate API costPROJECTED MONTHLY COST$486.20
Privacy by design
How local processing works Your data stays in your browser.
Our core developer tools process input locally. Your JSON, tokens, SQL, and other data are never uploaded to our servers.