Advanced on-device tools

A companion suite of heavier tools that run entirely on your device — on-device AI (a local chat model, speech-to-text, text-to-speech), media conversion, PDF editing, OCR, SQL over big files, and more. Nothing you load is uploaded; the compute happens in your browser.

Each tool runs live on this page, served from our isolated companion environment advanced.abracalc.com. Best in a recent Chrome or Edge.

Documents

Merge, split, rotate, delete pages, and turn images into a PDF.

Markdown editor

Live preview, export HTML, print to PDF.

OCR / scan to text

Turn an image into selectable text in 100+ languages.

Media

Image converter

Convert, resize and compress PNG, JPG and WebP.

Audio / video convert

Transcode, trim and extract audio with ffmpeg.

Background remover

Cut out a subject to a transparent PNG on-device.

EXIF viewer + strip

Read metadata and remove GPS before sharing.

On-device AI

A real chat model running in your browser (WebGPU).

Transcribe audio to text and subtitles locally.

Natural voices generated on your device.

Data

CSV / Parquet SQL

Query big files with SQL via DuckDB — no upload.

JSON / CSV studio

Format, validate and convert JSON, CSV and YAML.

Utilities

QR generator + reader

Make QR codes and scan them with your camera.

Hash files and AES-encrypt/decrypt in the browser.

Password generator

Strong passwords and passphrases.

Compare two blocks of text or code.

Palette from image, WCAG contrast, CSS gradients.

Fun

Stockfish engine evaluation in your browser.