File editor v2 v26.4.0+

With Term Pro

It comes with Term Pro. With a subscription, every file you open uses it. Without one, files open in the basic editor, which stops at 128 KB — and the first time you open a file, Term shows what the code editor adds, with a way to the plans. You can subscribe any time from the Term Pro banner in Settings.

Nothing about your files, hosts or scripts depends on which editor opens them: if a subscription ends, the same files simply open in the basic editor again.

It replaces the editor everywhere the app already had one: files over SFTP and scripts. In the SFTP browser a file opens for editing on a long press → Edit; a plain tap shows its details instead.

Syntax highlighting

Fifteen languages: bash, css, dockerfile, dotenv, html, java, javascript, json, markdown, python, rust, toml, tsx, typescript, yaml. The language comes from the file name, and names win over extensions — Dockerfile, .bashrc, .env.local and Cargo.lock are all recognised as themselves.

The colours are your terminal’s colours. Whichever colour scheme the terminal is using supplies the palette, and it follows a light/dark change along with the rest of the app — so the editor never turns up as a second theme you also have to like.

Selecting, and the loupe

Selection is the terminal’s, gesture for gesture: double-tap a word, triple-tap a line, or long-press and drag. The round handles extend the selection and autoscroll when you reach the edge of the screen, and the pill above it is Copy, Cut, Paste and Select all.

While a handle is moving the pill gets out of the way and a loupe rides above your finger — a capsule of magnified text with the syntax colours and the selection tint intact, and a thin marker at the exact point you are dragging to. Both come back when you lift.

How big a file, and how fast

The size limit goes from 128 KB to 32 MB. The numbers below are one run on a physical phone — a HUAWEI Pura 70 Pro+ over LAN Wi-Fi to a server on the same network, September 2026. Open includes the download, and Save includes the upload.

Two things to read out of it. Opening is the download, not the editor: the engine takes about 5 ms per megabyte to load text, so what you are waiting for is the network. And typing does not care how large the file is — the harness that injected the keystrokes could only manage one every 25 ms, so every figure in the 25–33 ms band means the editor added nothing that could be measured.

For scale: the editor this replaces needed 91 ms per keystroke at 128 KB and 583 ms at 1 MB, which is where its 128 KB limit came from — measured on an emulator with the app’s own editor benchmark, a different rig from this one, so read it as an order of magnitude rather than a ratio.

One honest exception. Above 4 MB there is no syntax highlighting. A syntax tree costs roughly 29 times the size of the file it describes, so past that line the editor keeps the text and drops the tree, and the header says no highlighting when it has. That trade is the only reason 32 MB is possible at all.

The rest of it

Transfers, and saving

Anything over 256 KB shows its transfer instead of a spinner: a bar with bytes and total while the file comes down, and a ring with a whole percentage in the editor header while it goes back up. Below that size, on any normal link, the file is one chunk and a bar would only ever appear full.

Saving has three endings. It saves; or the file changed on the server since you opened it, and you are asked before anything is overwritten; or the connection dropped, and Save turns into Reconnect so your edits are still in front of you when the link comes back. Windows line endings survive the round trip untouched.

What it does not do yet