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Convert Online

Online file converter for image, video, audio, document, ebook, font, archive and CAD formats

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API keyHTTPSNo CORSDocuments & Productivity

API key

Required

HTTPS

Supported

Browser calls

No, needs a proxy

Status

Not yet checked

How to call it

A starting template for Convert Online. Replace ENDPOINT with the path from the official documentation, which we link above rather than guess at.

# Requires an API key. Check the docs for whether it goes in a header or a query parameter.
curl -s "https://convert.online/ENDPOINT" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Accept: application/json"

This API does not send CORS headers, so a browser will block a direct call from your front end. Call it from your server, or put a small proxy in front of it.

Where this listing comes from

Aggregated from one public source (public-apis), then normalised and checked by us.

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Convert Online — common questions

Answered from what our own scheduled checks found, not from the provider's marketing.

Is Convert Online free to use?

Convert Online is listed in our free catalogue, but it requires an API key, so you will need to register before your first call. Providers frequently reserve higher limits and commercial use for paid plans.

Does Convert Online need an API key?

Yes. Convert Online authenticates with an API key. Keep it server-side rather than in browser code, because anything in your frontend bundle is readable by anyone who opens developer tools.

Can I call Convert Online from browser JavaScript?

Not directly. Convert Online did not return CORS headers when we checked, so the browser will block your page from reading the response even though the request itself succeeds. Call it from a server, or put a small proxy in front of it.

Is Convert Online available over HTTPS?

Yes. Convert Online serves over HTTPS, so you can call it from a secure page without triggering a mixed-content block.