A high performance IDE for Jupyter notebooks. Any Jupyter kernel, one static binary, and a fraction of JupyterLab's resource use.
Copyright © 2024-2026 Prasun Anand.
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Deepnote is a hosted data notebook with its own open format, which also runs inside VS Code and Cursor. Zasper is an open-source IDE for Jupyter that runs on your own machine. Both put an AI agent beside your notebooks; where they differ is the file format, the kernels, and whose agent it is.
| Question | Zasper | Deepnote |
|---|---|---|
| What it is | An IDE for Jupyter notebooks | A hosted data notebook, and an open-source format, runtime and editor extensions |
| Where it runs | Your laptop, or a server you run | Deepnote's cloud, or locally inside VS Code, Cursor, Windsurf or Antigravity; single-tenant and private cloud on Enterprise |
| Your notebooks |
.ipynb, read and written as Jupyter writes them, in your own folder
|
.deepnote projects in YAML; .ipynb converts in, and converting
back rewrites SQL blocks and turns inputs into fixed values
|
| Languages | Any Jupyter kernel: Python, R, Julia, C++, Scala, Go, Bash and more, with SQL cells beside them | Python, R and SQL |
| The AI agent | Claude Code, Gemini CLI, Codex or any ACP agent, on your own subscription; every change it makes can be reviewed and undone | The Deepnote Agent, on monthly AI credits: 5 agent calls a month free, $39 of credits a month on Team; your own model on Enterprise |
| Agents outside the app | An MCP server on every install, against the Zasper on your machine | A hosted MCP server at deepnote.com, for workspace projects |
| Git | Built in: branch, stage, commit and diff, notebooks included | Git integration in the editor extensions |
| Price | Free under the AGPL-3.0, with a commercial license for products that need one | A free plan for up to 3 editors and 5 projects; Team at $39 per editor a month, billed yearly; Enterprise priced on request |
| Source | Open source, AGPL-3.0 | Format and converters open source under Apache-2.0, with an open-source local toolkit; the cloud is a hosted service |
Deepnote details and prices as of 20 October 2026. Sources are at the bottom of the page.
Which one
Both are open where it counts for a notebook. The question is which format your work lives in, which kernels it needs, and whose machines it runs on.
.ipynb and should stay that way, in your git.Everything we say about Deepnote is from Deepnote's own website, docs and code, as of 20 October 2026. If something has changed, open an issue and we'll fix it.
No account to make, and your files stay on your machine.
A high performance IDE for Jupyter notebooks. Any Jupyter kernel, one static binary, and a fraction of JupyterLab's resource use.