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.
Convert between video formats, compress, and strip audio — all in your browser.
Sourdough baker math, canning processing times — kitchen math you should not memorize.
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.
Installing turns Loft into a standalone app with its own window, a home-screen or Dock launcher, and protected offline storage. The installation flow differs by browser because every browser vendor exposes a different API — this page covers all of them.
PWA install is not a single standard. Chromium-based browsers
(Chrome, Edge, Opera, Brave) implement the W3C
beforeinstallprompt event and can trigger a native OS
dialog from a button click. Apple's Safari doesn't — neither on iOS
nor macOS — so install on those platforms is a menu or Share-sheet
action the user has to find themselves. Firefox removed PWA install
support in 2021 and hasn't restored it.
We respect what each browser provides rather than fake a unified experience. The header's Install button adapts automatically: a direct prompt where it works, a visual guide where it doesn't, and nothing at all where the browser can't install at all.
If the button triggers a modal instead of the OS dialog, Chrome hasn't decided you've engaged enough yet. Browse a few tools or pin one to your dashboard, reload, and try again.
Requires macOS Sonoma (14.0) or later. Earlier versions don't support Dock PWAs; use Chrome or Edge to install.
Firefox removed desktop PWA support in 2021 and Android support in 2020. There's no current way to install any PWA in Firefox. Use Chrome, Edge, Opera, or Brave if you want an installed experience.
If the install button doesn't appear, doesn't work, or behaves unexpectedly, visit the install diagnostics page and press Copy report (markdown). Paste that output into a bug report at /bug-report — it contains every signal we need to triage, so we can usually answer within minutes.
