Your private
workbench.

Keep notes, save code, and work with data. Everything stays in your browser.

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Your notebookEnlarge Textburrow showing a Markdown release checklist, tagged notes, and a task table in the Autumn theme
A place for everyday notes Write in Markdown, with checklists and tables.

Developer tools.
Less busywork.

Generate file and folder checksums with 48 algorithms, select file types, and save batch reports to your notebook. Create UUIDs, encode Base64url, or convert and inspect data locally.

All developer tools Copy a result, download it, or save it to your notebook.

Take a look inside.

Real app screenshots with sample notes. Select one for a closer look.

For the things
you do every day.

Write notes, tidy up a query, or check what changed in a file.

Write it down before you forget.

Use Markdown for notes, lists, and tables. Add a tag or star a note so it’s easy to find later.

Markdown editor
Before the release
# project# release
Try checking off a task.

See your JSON as a table.

Turn an API response into a table. Filter rows, explore nested values, and export to CSV.

JSON editor
release.json
[
  { "version": "1.4.0",
    "ready": true },
  { "version": "1.3.2",
    "ready": true }
]
Switch between the JSON and table views.

Save that query for next time.

Keep queries, scripts, and config files alongside your notes. Choose from 19 language modes and reuse your favorite snippets.

SQL editor
weekly-report.sql PostgreSQL
SELECT week,
  COUNT(*) AS releases
FROM releases
WHERE status = 'released'
ORDER BY week DESC;
SQLQuery snippet

See what changed.

Compare text side by side. See what changed in a config, a query, or the next draft.

Text comparison guide
beforerelease: 1.3.2
− status: draft
checks: passed
afterrelease: 1.4.0
+ status: ready
checks: passed

Private notes.
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How your notes stay private

Clearing this site’s browser data removes saved notes. Keep a backup of anything you need.

Your notebook In this browser
notebook.textburrowNotebook backup

Find your editor.
Learn as you go.

Try an editor with a ready-to-use example, or find tips for your next task.

All editors & guides Text comparison guide

Good to know.

How saving, backups, and offline access work.

Do I need an account?

No. It’s free, and you can start writing as soon as you open it. Choose Everyday notes for a simpler layout, or Notes & code if you want the code tools too. Both layouts let you choose and search for a note’s language.

Are my notes sent to a server?

No. Textburrow has no note-upload service, cloud note storage, or account. Your notes save in this browser and the editing tools run on your device. Read how privacy, previews, and local backups work.

Where are my notes saved?

Your notes and settings are saved in this browser, on this device. They won’t appear in another browser or on another device unless you move them using a backup.

Can I use the notebook offline?

Yes. Open the app online first so it can save the files it needs for offline use. Once that’s finished, you can reopen it in the same browser without an internet connection. Supported browsers also let you install it as an app. Read the offline setup guide.

Can I use it for code and JSON?

Yes. Alongside Markdown notes, you can save code snippets, format supported code and SQL, view JSON as a table, and compare text side by side.

Which languages can I write in?

There are 19 modes: Markdown, Plain Text, TypeScript, JavaScript, Python, SQL, JSON, HTML, CSS, Bash/Shell, C++, Rust, YAML, TOML, Go, Terraform/HCL, Java, C#, and PowerShell. Search the language chooser by name or file extension, such as .py, .yml, or .tf. Formatting is available for supported languages, including YAML and SQL. Explore the editors and language examples.

How do I back up or move my notebook?

Open Settings → Backup & Restore to download a backup of your notebook. Import that file in another browser to move your notes. You can also download notes individually or export JSON tables as CSV.

Room for your
next idea.

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Notebook preview

App screenshot with sample notes. Open your notebook