I got tired of modern web utility calculators that are cluttered with 15 ad banners, cookie popups, and paywalls locking simple PDF downloads behind an email signup.
So I launched ZeroBloatTools — a collection of 12 specialized, 100% client-side utilities that run entirely in the browser with zero server uploads, no logins, and zero tracking.
What's Inside:
- 3-Way & 4-Way Switch Simulator: Interactive animated AC circuit visualizer showing traveler conductors in multi-switch wiring.
- Stair Stringer Calculator: 2D elevation framing visuals and IRC/IBC building code checks.
- 4×6 Thermal Label Cropper: Rotates and crops 8.5x11 PDF shipping labels for Rollo, Munbyn, and Zebra thermal printers locally in canvas.
- cURL to Playwright & k6 Converter: Converts raw cURL to clean test scripts with automated secret masking.
- Home EV Charger & Panel Load Calculator: NEC 220.82 residential capacity solver.
- CAT Scale Trailer Tongue Weight Calculator: 2-pass & 3-pass ticket solver with sway risk dynamics.
- BRRRR Real Estate Deal Analyzer: Models rehab, holding costs, and DSCR qualification with 1-click printable bank sheets.
- Audio Delay & Reverb Studio: Milliseconds, LFO frequencies (Hz), and DAW buffer offsets.
Everything is built with Next.js static export and hosted on Cloudflare Pages for instant worldwide performance.
Check it out at zerobloattools.com — would love your thoughts and feedback on what utilities to build next!
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