TrailWrite

Chrome extension

TrailWrite types where you click

TrailWrite is a Chrome side panel that types your text into Google Docs, Slides, Sheets, code editors such as CodeHS, Monaco and CodeMirror, and any text field. You set the speed, typos, pauses and breaks. It also sets up MLA, analyzes your writing, and offers optional on-device AI notes. It is free during the private beta.

Add to ChromeGo through the featuresFree during beta. Works in Chrome.

The real panel.

These are screenshots of the extension, not mockups. Scroll to turn through Type, Your pace, Analyze, Docs, History, the Works on switches and the command palette, or drag to turn one.

  • TrailWrite side panel mid-run: source text with the current word boxed in red, YOUR PACE selected, Pause, Stop and speed controls.
  • TrailWrite Type view with YOUR PACE selected next to Fast and Human, and a summary of 72 words per minute with pauses after sentences.
  • TrailWrite Analyze tab: word and sentence counts, reading ease, a sentence length chart, and lists of long sentences, passive voice and repeated words.
  • TrailWrite Docs tab with the focus timer, essay templates and the Set up this Google Doc for MLA section.
  • TrailWrite History tab showing lifetime words, hours, runs and average speed, a 6 day streak, and a list of recent runs.
  • TrailWrite settings with on and off toggles for Google Docs, Slides, Sheets, code editors and other sites.
  • TrailWrite command palette filtered by the word set, listing Go to Settings, Export settings and Set up MLA in the open Google Doc.

Paste it in.

Drop a draft into the panel. One block, or several queued to run in order.

Click where it goes.

Put the cursor in a Google Doc, a form or a code editor. Press Start. The text lands at the caret.

Typed at your pace.

Pick Fast, Human or Your pace, a mode measured from how you type. It slips on a key and fixes it, stops to think, takes a break. The red box follows your source text in the panel.

Google Docs. MLA built in.

Header, centred title, first-line indents and double spacing, set for you as it types.

Code mode.

Made for CodeHS, CodeMirror and Monaco. Auto-indent and brackets land exactly as written.

Dial it in.

Pick a speed or a finish time. Shape the variance curve. Set pauses, typo rate and breaks. Drag anything.

Time between keysVariance 8
38words per minute
600 words in about 16 min

New: AI features.

New

An Analyze report on your draft, a writing profile that builds over time, and optional AI notes from Chrome's on-device AI. Nothing leaves your computer.

Works where you write.

Google Docs, Slides and Sheets. Code editors including CodeHS, Monaco and CodeMirror. And any text field. Each one has its own on and off switch, so TrailWrite only acts where you allow it.

TrailWrite settings with on and off toggles for Google Docs, Slides, Sheets, code editors and other sites.

Everything else

Learns your writing.

New

Type a practice paragraph and TrailWrite measures your own rhythm: speed, pauses, bursts and error rate. No text is stored. Then pick YOUR PACE next to Fast and Human, and every keystroke, pause and fix follows your own timing. Writing feedback on your drafts is next. Local first, and off until you opt in.

TrailWrite Type view with YOUR PACE selected next to Fast and Human, showing a measured speed of 72 words per minute and pauses after sentences.
My pace, from a practice paragraphExample data
Speed
58 wpm, steady
Pauses
After commas and full stops
Bursts
Short, then a long beat
Error rate
1 in 24 keys

Next: writing feedback. Four of six sentences open with "The", and it will say so.

  • No text stored
  • Stays on this device
  • Off until you turn it on

Add it to Chrome.

Install the extension and open the side panel on any page. No account needed to start.

Add to Chrome

Free during beta. Works in Chrome.