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JSON Editor Online
CodeBeautify
View, edit, query, and convert JSON, YAML, CSV, XML, Mermaid, Markdown & MDX in one local-first workspace. Tree/table/diagram views, jq/SQL/XPath queries, schema validation, diff. Nothing is uploaded; no account needed.

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Cache Enabler
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Which is more popular?
Website, pricing, platforms and company facts side by side.
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| Website | prettify.tools | add0n.com |
| Pricing | — | |
| Platforms | — | |
| Company | Startup from the United States · 1 - 9 employees · 2026 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


Prettify is a viewer and editor for the data formats developers actually wrestle with: JSON, YAML, CSV, XML, Mermaid, Markdown, MDX, and HTML, in one fast, local-first workspace. Unlike most online formatters, Prettify is built for devs by devs. Parsing, editing, validation, queries, and...
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What each product offers, as listed by its team.


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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Prettify.tools and Cache Status.
Prettify.tools's answer
Prettify is local-first: your documents are never uploaded to a server. Everything, parsing, editing, validation, queries, conversion, runs entirely on your device, so it's safe for sensitive data like API responses with tokens, customer records, and internal config files. It also covers eight formats in one workspace (JSON, YAML, CSV, XML, Mermaid, Markdown, MDX, HTML) instead of a separate single-purpose tool per format, and works offline as a web app or native desktop app.
Prettify.tools's answer
Most online JSON tools upload your file to their server and handle only one format. Prettify keeps your data on your device, handles eight formats with Tree, Table, and Diagram views, and goes well beyond formatting: jq, SQL, and XPath query engines, JSON Schema validation, document diff, and type generation. Pro is a one-time $19.99, no subscription, and the free tier has no time limit.
Prettify.tools's answer
Developers who open, inspect, fix, and reshape data files by hand, API responses, config files, CSV exports, logs, and don't want to paste sensitive data into third-party servers. Also technical writers working in Markdown/MDX and people writing Claude Skills.
Prettify.tools's answer
Prettify is made by Off Leash Labs, an indie studio in San Francisco. It grew out of everyday frustration with online formatters that upload your files, quietly corrupt large numbers, and each handles only one format; so Prettify was built to do the whole job locally, across formats, with no account and no server.
Prettify.tools's answer
TypeScript, with Tauri for the native desktop apps. Prettier for formatting, Ajv for JSON Schema validation, quicktype for type generation. The jq engine is hand-written in TypeScript; no WebAssembly.
Share your experience with using Prettify.tools and Cache Status. For example, how are they different and which one is better?
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