Edit text in place, sign, redact, reorganize. True content-stream rewrite, not stamp-on-top.
LaunchEdit, sign, redact, and reorganize PDF files in your browser. The Adobe Acrobat alternative that runs on your device — no upload, no subscription.
Pixel-perfect PDF diff with word-level text view, metadata + form-field compare, ruler, and exclusion zones.
LaunchSide-by-side or overlay PDF diff. Highlights pixel-level differences plus a word-level text diff in a modal.
Open any PCB Gerber bundle in your browser. Gerber X2, Excellon, layer compare, snap-to-pad measure, snapshot URLs.
LaunchOpen RS-274X / X2 Gerber and Excellon files. Inspect layers, measure traces, export to PNG / SVG / DXF.
Compress, merge, split, convert, and manipulate PDF files.
Resize, compress, convert, and transform images.
Format, encode, decode, and validate code and data — safe for production secrets.
Transform, analyze, and format text with instant results as you type.
Edit, convert, and optimize audio and video files.
Sourdough baker math, altitude baking adjustments, canning processing times, and homebrew ABV.
AES-256 file encryption and self-destructing encrypted notes.
Open CAD, BIM, medical, and enterprise files without paying $300-30K/year for the native software. Gerber Viewer ships first.
Free online metronome with tap tempo, time signatures, and subdivisions. No signup, no app install.
It runs in your browser — no install, no signup, no clutter on the click. The Web Audio scheduler is sample-accurate, so timing matches dedicated apps like Pro Metronome or Soundbrenner for practice use.
Yes. Loft Tools is an installable PWA — once visited, the metronome page is cached and works without internet. Add Loft Tools to your home screen for one-tap access.
It uses the Web Audio API's lookahead scheduler (the same pattern used by professional in-browser DAWs). Beats are scheduled 100ms ahead against `audioContext.currentTime`, so jitter from JavaScript timers cannot affect playback.
Tap the Tap Tempo button along to any beat and the metronome derives the BPM from the running average of your last four taps. Useful for matching a song you can hear but don't know the tempo of.
