Chakku
Your files stay on your machine

Local-First Data Workbench

InspectTransformVisualize

CSV, JSON, Markdown, and whiteboard tools — all in your browser tab. No sign-up. No cloud upload.

Explore toolsTry sample CSVTry sample JSON

Jump in by format

CSVJSONMarkdownWhiteboard

Your files never leave this device.

why chakku

Built for privacy-first data work

Your data tools stay in the browser — these guarantees apply to every module.

4 guarantees|local

Runs entirely in your browser

No uploads to our servers

Works offline once loaded

No sign-up required

how it works

Three steps, all in your browser

Open your files on your machine, work on them in the tab, and export when you're done — nothing is sent to our servers.

  1. step 01

    Load your file

    Choose a tool and open CSV, JSON, or Markdown from your device — or start fresh on the whiteboard.

  2. step 02

    Explore & transform

    Profile data, build charts, preview Markdown, generate types, and sketch ideas — all locally.

  3. step 03

    Export locally

    Download CSV, JSON, Markdown, report exports, or sketches — your data stays on your device.

workbench

Open a module

One workspace, every tool. Open any module — your files stay in the browser.

7 tools loaded|local

faq

Common questions

Quick answers about privacy, pricing, and how Chakku works.

Does Chakku upload my files to a server?

No. Your CSV, JSON, Markdown, and whiteboard files are opened and processed in your browser. The data tools do not send your file contents to Chakku servers.

Do I need an account to use Chakku?

No account is required. Open a tool, load your file, and start working immediately in your browser tab.

What file formats does Chakku support?

Chakku includes tools for CSV, JSON, Markdown, and hand-drawn whiteboard sketches. You can view, merge, convert, profile, chart, and export data locally.

Is Chakku free to use?

Yes. Chakku is a free browser-based workbench for inspecting, transforming, and visualizing data on your own device.

Can I use Chakku offline?

After the site loads once, many tools continue to work offline in your browser. Your work can be saved locally depending on the tool.

status: offline-first·network egress 0 bytes
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