Zamzar API
Zamzar API: A broad conversion API for teams processing many file types at scale. Ranked #2 of 34 in PDF API Software by our editors (9.0/10); pricing: Free plan; best for large-scale multi-format conversion.
At a glance
- Editor score9.0 / 10
- PricingFree plan
- Best forLarge-scale multi-format conversion
- Free planYes
- Founded2006 · The Courtyard, Shoreham Road, Steyning, West Sussex BN44 3TN, United Kingdom
- Facts checked20 Sep 2026
Where it wins
- Converts files across more than 1,100 formats
- Supports asynchronous jobs and structured PDF extraction
- Connects through HTTP, FTP, SFTP and Amazon S3
Where it doesn't
- PDF workflows focus on conversion rather than editing
- No OCR capability is included in the listed features
- Higher tiers are needed for larger files and heavier volume
Our verdict on Zamzar API
Zamzar API is a cloud-based REST API for developers building file-conversion workflows. It handles documents, images, audio, video, CAD files, eBooks and other formats, with support for more than 1,100 conversion types. PDF workflows include PDF-to-TXT for text extraction and PDF-to-CSV for structured data extraction. Files can be imported and exported through HTTP, FTP, SFTP and Amazon S3, while official SDKs are available for Java, PHP and Python. It is a strong fit for applications that need broad format coverage without building separate conversion services for each file type.
The pricing structure scales by monthly conversion credits and file-size limits. TestFree includes 100 conversion credits, requires no card, allows files up to 1 MB, stores files for 1 day and has no overages. Startup costs $25 per month and includes 500 credits, a 50 MB maximum file size and 2-day storage. Growth costs $99 per month, includes 2,500 credits, unlimited maximum file size and 3-day storage. Scale costs $299 per month, includes 10,000 credits, unlimited maximum file size and custom conversions. The usage explorer and account-level credit monitoring help teams track consumption.
Its main strength is breadth: asynchronous jobs, multiple transfer methods, bearer-token or HTTP Basic authentication, and SDK support suit backend systems with varied input sources. The trade-off is focus. Zamzar API is designed around conversion and selected extraction workflows, not a complete PDF editing suite. Teams needing OCR, PDF merging, compression or general PDF editing should choose a product centered on those capabilities instead. Choose Zamzar API when format coverage, cloud delivery and scalable conversion credits matter most; choose an alternative when document manipulation is the primary requirement.
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Zamzar API pricing
All 4 Zamzar API plans and prices →
Zamzar API fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Not verified |
| OCR | Not verified |
| PDF conversion | Yes |
| Data extraction | Yes |
| Merge and split | Not verified |
| PDF compression | Not verified |
| Deployment model | Cloud |
| SDK languages | Java, PHP, Python |
| Deployment | Cloud |
| Compliance & security | GDPR |
| Support | Email, Tickets, Docs |
| Built for | Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 5 integrations: Amazon S3, FTP, SFTP, HTTP, HTTPS |
| Pricing | Free plan (source) |
| Website | developers.zamzar.com |
| Facts checked | 20 Sep 2026 |
Zamzar API integrations
Zamzar API lists 5 integrations on its own site.
- Amazon S3
- FTP
- SFTP
- HTTP
- HTTPS
Alternatives to Zamzar API
- Adobe PDF Services APIA broad PDF API suite with a free tier and tools for complex document workflows.9.3
- Nutrient Document Web ServicesA broad document-processing API for developers building PDF workflows.8.8
- PDFMonkeyA low-cost choice for generating data-driven PDFs through templates, APIs, and automations.8.6
See all Zamzar API alternatives →
Zamzar API vs the competition
- Zamzar API vs Adobe PDF Services API
- Zamzar API vs Nutrient Document Web Services
- Zamzar API vs PDFMonkey
- Zamzar API vs LlamaParse
- Zamzar API vs Sejda API
- Zamzar API vs PDF.ai API
Compare Zamzar API with any tool side by side →
Also Ranked In
Zamzar API is ranked in 4 of our directories.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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