OAF — open all files on your phone

What it opens

Reader first. Editor when you need it.

The page is the interface: bars slide away while you read and come back with a tap.

📄

PDFs, fully

Search, annotate, fill forms, sign, add text and pictures. Merge, split, compress, watermark, or scan pages to PDF.

📝

Word & Excel

Edit .docx and .xlsx in place — styles, lists, tables, replace-all, formulas, fill down, AutoSum — and keep what OAF doesn’t touch.

🎬

A proper player

Swipe to seek, brightness and volume, pinch to zoom, subtitles, A-B repeat, frame steps, picture-in-picture, and it resumes where you stopped.

🖼️

Picture editor

Crop, filters, drawing and text, blur faces, shape cut-outs, frames, watermarks, remove the background, copy text out of a photo.

🗂️

A real file manager

Search inside documents, a 30-day bin, storage clean-up, network drives (SMB, SFTP, FTP, WebDAV) and share apps as one installable APK.

🗜️

Archives & more

Open and make zip, 7z, tar and rar; read EPUB books, slides, code with highlighting, fonts and app packages.

Try it

One viewer, every kind of file

Open it, and it just shows up

OAF looks at what a file really is, not just its name, and opens it in the viewer made for it — inside the same calm, page-first frame.

Pick a file type on the right to see its viewer
Open files from OAF, from Recents, or from any app with “Open with”
OAF shows up in Android’s own file picker too
Light or dark pages, whatever the rest of the app uses

Tap a file type

At a glance

Read, edit, save — in the format it came in

Word and Excel files are patched, not rewritten, so pictures, comments and formatting OAF doesn’t model survive a save.

Kind	Read	Edit	Saves as
PDF	search, links, contents, pinch zoom	annotate, forms, sign, text, page tools	PDF
Word	headings, lists, tables, pictures	text, styles, tables, find & replace	.docx, in place
Excel & CSV	formulas, formats, frozen panes	cells, formulas, fill, AutoSum, sort	.xlsx, in place
Slides	slides, notes, presenting	—	—
Pictures	HEIC, AVIF, animated GIF and WebP, SVG	crop, filters, draw, blur, background	JPEG, PNG, WebP
Archives	zip, 7z, tar, gz, xz, rar	extract, make (with a password)	zip, 7z, tar

Under the hood

How it works

Pick a file

From OAF’s own browser, Recents, a network drive, or “Open with” in any other app.

It works out what it is

OAF reads the file’s first bytes, not just its name, and picks the right viewer.

Read, edit, save

Edits save back into the same file, or as a copy, keeping everything OAF didn’t change.

Privacy

Your files stay on your phone.

OAF has no account, no analytics and no ads. It only goes online when you ask it to — to play a video link or reach a network drive you added.

Read the privacy policy →

No account, no sign-in
No analytics or crash reporting
Files are opened and edited on the phone
Server passwords kept encrypted by the phone’s keystore

Every file on your phone.
One app opens them all.