Blog
File conversion guides
- 01
Spreadsheets and CSV in the browser
Reading XLSX workbooks and writing Excel files with SheetJS — no Office install required.
- 02
File algorithms and architecture
An open-source, browser-first stack — how Ask Jeeves detects formats, routes conversions, and lazy-loads heavy libraries.
- 03
The office — a lean team of experts
Ask Jeeves is built by a small, focused team — no bloat, no unnecessary layers between you and the converter.
- 04
PDF extract, split, and pages to images
Page ranges, ZIP bundles, and PNG export — powered by pdf-lib, PDF.js, and JSZip in your tab.
- 05
Data privacy — your files never leave your device
Ask Jeeves is a client-side-only app. Nothing you supply is sent to our servers — processing happens entirely in your browser.
- 06
Research scientist — always finding a better way
How Ask Jeeves keeps innovating on browser-first conversion — faster, leaner, and still private.
- 07
Talk to Jeevez — tech support coming soon
Direct help from Jeevez is on the way. Until then, use the converter and our guides to get unstuck.
- 08
DOCX to HTML and plain text
Extracting readable content from Word files with mammoth — what to expect from the output.
- 09
Supported files
Input formats Ask Jeeves accepts and how multi-file batches work.
- 10
CSV ↔ JSON without a server
How tabular data is parsed and serialized locally using PapaParse.
- 11
Image conversion with the Canvas API
How PNG, JPEG, and WebP transcodes work in the browser — resize, quality, and instant previews.