Blob Notebook

A PLACE TO START

Text, code, and data.
One everyday notebook.

A free online notepad and code editor, with notes saved locally in your browser. Find an editor for your language, try a small example, or learn how to take your notebook offline.

Open notebook

16 language modes · No account needed · Offline after setup

Convert, inspect, or generate a result with Developer tools →

JOT SOMETHING DOWN

Writing

.txt

Online notepad

Write plain text, find details, and keep notes in this browser.

 .md

Markdown editor

Write Markdown with previews, task lists, tables, and local saving.

KEEP A USEFUL SNIPPET

Code

.sql

SQL editor & formatter

Format queries with your dialect and keep useful SQL nearby.

 .js

JavaScript editor

Keep JavaScript snippets with highlighting, formatting, and local saving.

 .ts

TypeScript editor

Edit TypeScript with highlighting, formatting, and useful code snippets.

 .py

Python editor

Keep Python source with highlighting, search, and local saving.

 .html

HTML editor

Edit HTML and preview it with external resources blocked initially.

 .css

CSS editor

Edit CSS with highlighting and formatting, then download your source.

 .sh

Bash / Shell editor

Keep shell scripts with highlighting, search, and local saving.

 .cpp

C++ editor

Keep C++ source with highlighting, search, and local saving.

 .rs

Rust editor

Keep Rust source with highlighting, search, and local saving.

 .go

Go editor

Keep Go source with highlighting, search, and local saving.

LOOK A LITTLE CLOSER

Data & configuration

.json

JSON editor & table viewer

Format JSON, explore tables, and review changes before saving.

 .yaml

YAML editor & formatter

Edit YAML settings with highlighting, formatting, and local saving.

 .toml

TOML editor

Edit TOML settings with highlighting and local saving.

 .tf

Terraform / HCL editor

Edit Terraform configuration with highlighting, search, and local saving.

MAKE IT YOURS

Guides

How to

Offline & local notes

Prepare offline access and keep a notebook backup you control.

 How to

Text & JSON comparison

Compare text or JSON in two panes and keep both versions.

 How to

Note privacy

Understand local saving, network requests, and backups for your notes.