ConvertAPI alternative
doc-convert.dev vs ConvertAPI
ConvertAPI is a developer API for converting documents, billed per conversion on monthly or annual plans. Here is how it compares with doc-convert.dev on price, limits and developer features, using only what ConvertAPI publishes on its own pages.
ConvertAPI pricing and features compared
| doc-convert.dev | ConvertAPI | |
|---|---|---|
| Pricing model | One price per conversion, whatever the format pair | Per conversion, but one request “counts as one or more conversions”Source |
| Cheapest paid plan | Pro: $9 a month for 1,500 conversions | Developer: $35 a month for 1,000 conversions (their AWS Marketplace listing)Source |
| 1,500 Office to PDF conversions a month | $9 on Pro ($0.006 each) | $95 a month on Startup, the smallest plan that includes 1,500 ($0.063 each)Source |
| 10,000 Office to PDF conversions a month | $39 on Scale ($0.0039 each) | $175 a month on Growth, which includes 15,000 ($0.0175 each)Source |
| Free tier | 5 conversions every month | 250 conversions once, as a trial for testing and developmentSource |
| Largest file | 25 MB Free, 100 MB Pro, 250 MB Scale | 200 MB to 1 GB depending on plan, 2 GB on EnterpriseSource |
| Failed conversions | Never billed | Billed: “A conversion request is counted whether or not the conversion succeeds.”Source |
| MCP server for AI agents | Hosted, signed in with an API key | Hosted (OAuth), or an open-source server you run yourselfSource |
| OpenAPI spec | Published | Published (OpenAPI 3.0)Source |
| Formats | 19 formats and 161 conversion pairs, including Markdown and ebooks | Office, PDF, images and Markdown. EPUB and MOBI convert only to PDF and images, and nothing converts to EPUB or MOBISource |
Monthly prices are the cheapest published plan, plus published overage where that is cheaper, for files under a minute of conversion time and under 50 MB.
Where ConvertAPI is stronger
- Larger files: up to 1 GB on Business and 2 GB on Enterprise.
- PDF to Excel and PowerPoint, PDF/A, and image output.
- SDKs for nine languages, plus a CLI.
Where doc-convert.dev is stronger
- Failed conversions are never billed. ConvertAPI counts every request, whether or not it succeeds.
- At 1,500 conversions a month, $9 instead of $95.
- A free allowance that comes back every month, where ConvertAPI’s 250 conversions are a one-time trial.
- Ebooks in both directions: EPUB, MOBI, AZW3 and FB2 to and from documents.
Checked against ConvertAPI’s own pages on November 2, 2026. Prices and limits change, so confirm them on https://www.convertapi.com before you decide. Found something out of date? Email support@doc-convert.dev. ConvertAPI is a trademark of its owner, which has no affiliation with doc-convert.dev.