DevWrench

DevWrench

Free browser-based developer tools for JSON and API workflow

KarloVonKlifton
@KarloVonKlifton
Published on Apr 6, 2026
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About DevWrench

DevWrench is a collection of fast browser-based developer tools designed for everyday development workflows. Convert JSON to TypeScript interfaces, transform cURL commands into Fetch requests, compare JSON objects, flatten nested JSON to CSV and inspect large CSV files directly in your browser. All tools run locally in your browser: no accounts, no uploads and no tracking. DevWrench focuses on simple utilities developers use daily when working with APIs, JSON data and JavaScript projects.

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Reviews (1)

Average 5.0 out of 5

5.0

Based on 1 review

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nckbrz

This is a practical daily toolkit for API work, with local JSON transformations and CSV inspection that avoid accounts, uploads, and unnecessary setup.

Comments (1)

nckbrz
@nckbrz

The local developer toolbox is nicely focused: JSON-to-TypeScript, cURL-to-Fetch, and CSV inspection cover practical API work without uploads or account setup.