Everything in the catalog

WebAssembly build of whisper.cpp that transcribes microphone or file audio inside the browser.

Reference web PDF viewer for opening local files with search, zoom and annotation.

Design database schemas visually, then export SQL for PostgreSQL, MySQL, SQLite and others.

Demo of JavaScript OCR that reads text from images in many languages.

Open spreadsheet files such as XLSX, XLS and CSV in the browser and convert them to other formats.

Compares image codecs side by side and recompresses photos to smaller JPEG, WebP, AVIF or PNG files.

x86 PC emulator in WebAssembly that boots Linux, KolibriOS and older Windows.

Open-source grammar checker that runs on your own device, so text is not sent to a server.

Over 100 PDF tools that run locally in the browser, with no uploads or sign-up.

Reduce PDF file size locally in the browser.

Annotate, highlight and redact PDFs in the browser.

Combine several PDFs into one file locally in your browser.

Make scanned PDFs searchable using in-browser OCR.

Extract pages or ranges from a PDF locally in your browser.

Run a real Postgres compiled to WebAssembly in the browser and try SQL against it.

Converts images, audio, video and documents locally in the browser using WebAssembly.

Interactive Python console that runs CPython compiled to WebAssembly inside the page.

Demo UI of sql.js, SQLite compiled to JavaScript, for running queries on in-memory databases.

Try the Papa Parse CSV parser on pasted or uploaded text and see the parsed rows and config effects.

Browser-based PDF toolbox for merging, splitting, compressing, converting and editing without server uploads.

Resume builder and parser that works locally in the browser, no sign-up, exporting a PDF.

Converts raster images into SVG vector graphics, running in the browser per the page.

Removes unwanted objects from a photo and upscales images using models that run in the browser.

Converts a recording of an instrument or voice into MIDI notes, processing audio in the browser.