Format, validate, and convert structured data instantly with a powerful browser-based tool. Improve readability, detect errors, and manage multiple data formats with a fast and developer-friendly interface.
Editor score is the AltFTool team’s own rating, not user reviews.
Features
Format and beautify structured data
Validate data and detect errors
Minify and optimize data
Install
Step 1: Open the extension's page on AltFTool and choose “Add to Chrome”. The official Chrome Web Store listing opens in a new tab.
Step 2: On the store listing, check the developer, the description and the permissions the extension asks for.
Step 3: Click “Add to Chrome”, read the permission prompt Chrome shows, then confirm with “Add extension”.
Step 4: Pin it. Open the puzzle-piece Extensions menu next to the address bar and click the pin icon so it stays one click away.
Permissions & privacy
Chrome shows the exact permissions DataFormat Pro asks for before you confirm the install. You can also read them, and the developer’s data declarations, in the Privacy practices section of the store listing.
Explain permissions with the free analyzerFAQ
Yes. DataFormat Pro is a free Chrome extension from AltFTool and does not need an AltFTool account.
Choose “Add to Chrome” on this page to open the official Chrome Web Store listing, review the permissions, then click “Add extension” and pin it from the Extensions menu.
DataFormat Pro is built for Google Chrome. Chromium-based browsers such as Microsoft Edge, Brave and Opera can usually install Chrome Web Store extensions too; Firefox and Safari cannot.
Format and beautify structured data; Validate data and detect errors; Minify and optimize data.
Chrome shows the exact permissions before you confirm the install, and the store listing shows them too. Paste them into AltFTool's Browser Extension Permission Analyzer for a plain-English explanation.
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