Local-first · zero install

A Markdown editor that runs in your browser

Open a folder and edit the .md files inside it. Every change saves to the real file, not an export, not a sync.

Get Started Download Windows Desktop No sign-up No install First note in 30 seconds
One .md file, three modes
Local-first

Every note is a real file you own

Once you pick a local folder, NoteLoom reads and writes the Markdown files inside it directly. The same .md opens identically in Obsidian, Typora, VS Code, or any other editor.

  • Plain .md files, CommonMark and GFM compatible.
  • Pair with iCloud, Dropbox, or Git. No extra sync to set up.
  • Ownership is yours. Stop using NoteLoom and every file stays put.
my-notes
NameKindSize
projectsFolder--
weeklyFolder--
local-first.mdMarkdown4 KB
reading-list.mdMarkdown2 KB
README.mdMarkdown1 KB
Three-mode editor

Three ways to see one file

Source, edit, and read: three equal modes, switch between them anytime.

Source

Every Markdown mark in full, with no hidden characters. Best for tables, code blocks, and frontmatter.

Edit

Bold, lists, and tables render inline while you type. The line under the cursor falls back to source.

Read

A clean read-only view, the way the note will look when it is done. Full CommonMark, GFM, and KaTeX.

AI Assistant · Chat Panel

AI that understands your local notes

No more copying and pasting. The model searches and reads the Markdown notes in your local folder directly, answering questions and editing files with full context.

  • Ready out of the box
    Ships with one free built-in model (GLM-5.3-Flash). Open the panel and ask, no signup. The free allowance refills daily, or plug in your own DeepSeek or Zhipu GLM key and requests go straight from your browser to the provider.
  • Context-aware reading
    It searches the notes you have mounted and opens a file only when it needs to. When it does, the answer shows the file path and how many characters it read.
  • Strict permission control
    Four permission tiers: Off, Read only, Approve each change, and No approvals. Approve each change is the default, so the model asks before it writes. Switch to No approvals and it writes straight away.
Instant on the web · zero install

Start writing in 30 seconds

No sign-up, no install. About 30 seconds from opening the page to writing. Works in Chrome, Edge, or Arc on desktop.

1 Open the app URL in your browser
https://app.noteloom.cc
Type the URL and go
A pure web app: no installer, app store, or license key. Start editing as soon as the page loads.
2 Choose a local folder
Select folder
Documents
Notes ←
Projects
Allow access
Built on the browser File System Access API. NoteLoom can only read and write that folder after you grant access; no other files are touched.
3 Write to a local file as Markdown
# My first note
NoteLoom saves this note as
my-first-note.md
The file lands straight in the folder you just chose
Close the browser and the file stays put. The generated .md follows common Markdown conventions and opens directly in VS Code, Typora, Obsidian and more.
0:00
Open the page
0:15
Grant the folder
0:30
Write your first note
The longer you use it

It grows into a knowledge base

Start with one file. As your notes stack up, NoteLoom links them together, so your knowledge connects instead of scattering.

Links and backlinks

Type [[ and pick a note from autocomplete. Every note tracks who links back to it, and turns plain-text mentions into real links with one click.

wiki-links · backlinks · autocomplete
local-first.md editing
Local-first software

Builds on [[CRDT]] and stays readable as plain [[Markdown|text]].

See the ideals in [[Ink & Switch#ideals]].

[[sync engine
Automerge
Yjs
Backlinks 3 linked · 1 unlinked
syncing-notes.md
Offline edits merge cleanly thanks to [[local-first]] guarantees.
weekly/2026-w28.md
Reread the [[local-first]] paper before the sync review.
tools/obsidian.md
A [[local-first]] vault stays yours even without the app.
readme.md names local-first in plain text
Rename a note and every [[link]] pointing to it updates itself. Alias with [[Note|shown text]], or aim at a spot with [[Note#heading]].
Knowledge graph

See how your notes connect

Every [[wiki-link]] is an edge. Drag a node, hover to trace its neighbors, click to recenter. Linked notes pull together; loners drift to the margins.

local-first-vault 13 notes · 12 links
this note linked not created yet
drag · hover · click
Browser extension · on the Chrome Web Store

Whatever you read, save it into your NoteLoom

The NoteLoom browser extension is a companion to the web app: turn any page into a clean reading view, and clip page content and YouTube / Bilibili captions into .md, saved into your own local knowledge base.

Add to Chrome Learn more

Reading view

One-click clean reading view with an auto table of contents and eye-friendly themes.

Clip to NoteLoom

Clip page content into Markdown with its source link, preview it, then pick a local folder to save.

Video captions

Pull captions from YouTube or Bilibili and jump by timestamp. Turn a video into notes.

Local-first

Everything is processed in your browser, only when you click. Nothing uploaded, no account.

Free. No account. Chromium desktop (Chrome, Edge, Arc). Your notes stay on your disk. Your notes are not uploaded unless you ask the AI chat panel about a note. What is NoteLoom?

Your notes live on your disk.
NoteLoom works on them where they are.

Get Started Desktop Client No sign-up · first note in 30 seconds