Zamzar API vs ConvertAPI

Zamzar API9.0Visit CConvertAPI7.9Visit

Higher score Zamzar API #2 in PDF API Software 9.0/10 Free plan Free plan✓ 2 of 5 features Visit Zamzar API

vs

C ConvertAPI #8 in PDF API Software 7.9/10 Paid ✓ 1 of 5 features Visit ConvertAPI

• Zamzar API fits best

  Large-scale multi-format conversion

• ConvertAPI fits best

  High-volume file conversion developers

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature	Zamzar API 9.0/10 Visit ↗	CConvertAPI 7.9/10 Visit ↗
At a glance
Editor score	9.0	7.9
Ranking	#2 in PDF API Software	#8 in PDF API Software
Best for	Large-scale multi-format conversion	High-volume file conversion developers
Pricing model	Free plan + paid	Paid
Starting price	—	—
Free plan	✓ (best)	—
Free trial	—	—
Deployment	Cloud	Cloud
Integrations	5 integrations	14 integrations
Features Zamzar API 2/5 · ConvertAPI 1/5
OCR	Not checked yet	✓ (best)
PDF conversion	✓ (best)	Not checked yet
Data extraction	✓ (best)	Not checked yet
Merge and split	Not checked yet	Not checked yet
PDF compression	Not checked yet	Not checked yet
Specs
Deployment model	Cloud	Not checked yet
SDK languages	Java, PHP, Python	Not checked yet
Our review
Pros	Converts files across more than 1,100 formats Supports asynchronous jobs and structured PDF extraction Connects through HTTP, FTP, SFTP and Amazon S3	Converts more than 100 file types to and from PDF OCR, text and table extraction, and AI document extraction SDKs for .NET, PHP, Java, Python, Node.js, Ruby, and Go
Cons	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	No permanent free plan Lower tiers limit concurrent conversions Enterprise pricing requires a custom quote
Our verdict	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… Read the review →	ConvertAPI is a cloud-based file conversion service for developers and businesses that need programmatic document processing. Its REST API converts more than 100 file types to PDF and converts PDFs to formats including DOCX, HTML, JPG,… Read the review →

Strengths and trade-offs

• Zamzar API — 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

• ConvertAPI — where it wins

  • Converts more than 100 file types to and from PDF
  • OCR, text and table extraction, and AI document extraction
  • SDKs for .NET, PHP, Java, Python, Node.js, Ruby, and Go

  Where it doesn't

  • No permanent free plan
  • Lower tiers limit concurrent conversions
  • Enterprise pricing requires a custom quote

• Zamzar API9.0/10 · Free plan

  A broad conversion API for teams processing many file types at scale.

  Visit Zamzar APIFull verdict →
• CConvertAPI7.9/10 · Paid

  A deep conversion API for developers handling varied formats, OCR, extraction, and workflows.

  Visit ConvertAPIFull verdict →