Best ConvertAPI Alternatives & Competitors in 2025

PDFLoom is a versatile PDF conversion API for developers.

Key PDFLoom features:

Convert To PDF Document To PDF Screenshot

paid Free Trial

Convert any HTML documents to high-fidelity PDF using a single POST request.

Key PDFShift features:

High-quality PDF conversion Ease of use Batch conversion API documentation

freemium $9.0 / Monthly (500 conversions and up to 5Mb per generated PDF.)

LiveSession helps you analyze users’ behavior, improve UX, find JS bugs, and increase conversion rates using session replays, and event-based product analytics.

Key LiveSession features:

Session Replay Filters Segmentation Custom data

Try for free freemium $99.0 / Monthly (10k sessions / unlimited users / 1-month data retention)

As the only API powered by the Prince HTML-to-PDF engine, DocRaptor provides the best support for complex PDFs with powerful support for headers, page breaks, page numbers, flexbox, watermarks, accessible PDFs, and much more.

Key DocRaptor features:

Ease of Use Customizable High-Quality Rendering Compliance

Try for free paid Free Trial $15.0 / Monthly (125+ Documents)

Pdfcrowd is a Web/HTML to PDF online service. Convert HTML to PDF online in the browser or in your PHP, Python, Ruby, .NET, Java apps via the REST API.

Key PDFCrowd features:

Ease of Use API Integration Customization Options Cross-Platform Compatibility

Free online PDF tool set.

Key iLovePDF features:

User-Friendly Interface Wide Range of Tools Free Version Available Cloud Integration

convert anything to anything - more than 200 different audio, video, document, ebook, archive, image, spreadsheet and presentation formats supported.

Key CloudConvert features:

Versatility User-Friendly Interface Cloud Integration API Access

Take screenshots, Test load times, Check DNS records, Ping IPs, Audit security for your site, Run Lighthouse and a lot more with Geekflare APIs.

A flexible API for creating, filling, and signing PDFs.

Key Anvil API Suite features:

Ease of Use Comprehensive Features Integration Capabilities Automation Friendly

Open Source

Integrate document processing capabilities into any software applications. Generate, convert, view, edit, and sign pdf and documents easily.

Key Apryse features:

Comprehensive PDF Solutions Cross-Platform Support Developer-Friendly High-Performance

Automate your PDF generation.

Key PDFMonkey features:

Snippets Direct generation XML embedding PDF generation

Open Source freemium €15.0 / Monthly (3000 documents, 7 days retention, Load images, fonts, CSS & JS)

APITemplate.io allows you to auto-generate social images and PDF documents with a simple API or automation tools like Zapier & Airtable. No CSS/HTML required.

Key APITemplate.io features:

Automation Flexibility Integration Scalability

freemium $24.0 / Monthly (1500 Images/PDF, 15 Templates)

Native & Cloud REST APIs for developing desktop & cloud-based applications in your favorite language to create, edit & convert PDF files.

Key Aspose.PDF features:

Comprehensive Feature Set Platform Independence High-Quality Output Extensive API Documentation

A low code and REST API for PDF conversion, editing, extraction, automation and more.

Key PDF.co features:

Comprehensive Tools API Integration User-Friendly Interface Security