Small tools, useful results
Free browser tools built for real work.
Focused utilities for freelancers and developers. No signup, no API key and no bloated dashboard between you and the answer.
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Choose a free tool
Four focused tools are live now. All are free and require no signup.
Upwork Proposal Roast
Score your proposal against the job post before you send it.
Use free tool →Complexity Coach
Estimate JavaScript time and space complexity with line evidence.
Use free tool →SaaS Metrics Calculator
Calculate MRR, ARR, NRR, CAC, LTV and payback in your browser.
Use free tool →IndexNow Submitter
Check your key file and send changed URLs to Bing and Yandex.
Use free tool →Simple on purpose
Useful before clever.
Each tool will explain what it checked, what it could not verify and why. Browser-first processing keeps the experience fast and avoids unnecessary accounts.
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