Use case · Audience
For Developers
JSON, CSV, XML, YAML, Markdown — transform data and docs without uploading source to a random SaaS.
Built for Engineers, API builders, and technical writers.
API payload ↔ spreadsheet
Flatten JSON for Excel review, or turn CSV exports into objects for scripts.
Config & markup interchange
Move between JSON, XML, and YAML when integrating services or migrating configs.
Docs to publishable HTML
Convert Markdown notes into HTML drafts without leaving the browser.
Encode / debug bytes
Base64 round-trips for fixtures, data URIs, and quick inspections.
Why local conversion matters here
Source dumps and API fixtures often contain secrets. Local conversion keeps them off third-party converters.
- No third-party conversion queue — processing stays in this browser
- No account required to run the workflow
- Same privacy-first engine as the rest of Format Convertly
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