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 with a document-type selector — Document (contracts, reports), AEC / Blueprint (drawings, schematics), or Image-Scan. 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, compress, and cut audio and video — MP3, WAV, MP4, WebM, Opus — all in your browser, nothing uploads.
Sourdough baker math, canning processing times — kitchen math you should not memorize.
AES-256 file encryption and self-destructing encrypted notes.
Analyze packet captures and run sysadmin diagnostics in your browser — nothing uploads. PCAP Analyzer ships first.
Chart-overlay technical analysis and precision financial math — your screenshots and numbers never leave your device.
Open CAD, BIM, medical, and enterprise files without paying $300-30K/year for the native software. Gerber Viewer ships first.
Compress MP3, WAV, M4A, FLAC, OGG, Opus, AAC, and WebM audio to 96–320 kbps or auto-fit WhatsApp's 16 MB limit. Runs in your browser — no upload, no watermark.
It calculates the highest MP3 bitrate that keeps the output file under 16 MB (WhatsApp's voice note and audio message limit) using the audio duration. A 5% safety margin prevents edge-case overflows, and bitrate is clamped between 32 and 192 kbps.
All outputs are MP3, encoded in-browser via lamejs. MP3 is universally accepted by messaging apps, email clients, and media players.
No. The Web Audio API decodes the file locally and lamejs re-encodes it in the same browser tab. No data leaves your device.
Yes. Drop multiple files or use the file picker to select a batch. Each file is compressed in sequence and the results are bundled into a single ZIP.
It depends on the source format and the target bitrate. A 320 kbps MP3 compressed to 128 kbps saves roughly 60% of the file size. WAV and FLAC sources can save 90%+ when compressed to 128 kbps.
