File Conversion APIs | Reliable Format Conversion for Developers - ApyHub

Converting Files with ApyHub APIs

Convert files effortlessly using powerful APIs

Simplify file workflows using developer-friendly file conversion APIs.

Convert documents, PDFs, spreadsheets, images, and more—reliably and at scale.

Empower content management systems, automation workflows, and cross-platform apps to handle files efficiently.

Skip building custom conversion tools and speed up your development process.

Most Popular use cases for converting files using APIs

Boost User Experience with Fast, Dynamic File Previews

Deliver instant previews for documents and videos to engage users seamlessly.

Generate previews for PDFs, DOCX, PPTX, XLSX, and TXT files to speed up loading times in apps or content platforms. Combine with video thumbnail generation APIs to create engaging snapshots or GIF previews that improve navigation and increase user interaction.

Create Social-Ready Marketing Content

Turn video clips into shareable GIFs and branded content effortlessly.

Automate the creation of GIFs from video segments to produce eye-catching marketing loops, social media posts, or app demos. Add watermarks programmatically to protect your brand and ensure consistent content ownership across all channels.

Enhance Media Galleries

Generate precise video thumbnails at specific timestamps for richer galleries and previews.

Use video thumbnail APIs to extract frames from videos or URLs, tailoring size and timing to fit your UX needs. This helps platforms like YouTube, streaming services, or media libraries present polished and relevant previews to users.

Protect and Brand Video Content

Secure your video assets and reinforce branding across all your media.

Add text or image watermarks automatically to videos in batch workflows, preventing unauthorized use while promoting brand recognition. This solution scales effortlessly for enterprises and content creators handling large volumes of media.

Building applications around File-Conversion

A curated set of APIs to power core file conversion workflows

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Generate File Preview API

File Conversion

Convert documents and media files into preview images using this file preview API. Upload files in formats like PDF, DOCX, PPTX, XLSX, TXT, and more to generate resized preview images by specifying op...

ApyHub
ApyHub

300 Atoms

category icon file-conversion

Convert JSON to CSV API

File Conversion

This API lets you upload and transform `JSON` data to `CSV` format. This API not only simplifies the conversion process but also ensures that it's done efficiently, reliably, and at scale. Whether yo...

ApyHub
ApyHub

50 Atoms

category icon file-conversion

Convert CSV to JSON API

File Conversion

The Convert CSV to JSON API allows you to upload CSV files and transform them into structured JSON files effortlessly. It enables seamless data exchange, flexible data structuring, and compatibility w...

ApyHub
ApyHub

50 Atoms

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Convert HTML to Word API

File Conversion

This API lets you upload and transform `HTML` and `XHTML` files to Word documents. This API proves useful in various situations, such as when creating reports or summaries in HTML, as it enables use...

ApyHub
ApyHub

120 Atoms

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Convert HEIC to JPEG/PNG API

File Conversion

The Convert HEIC to JPEG/PNG API allows you to easily convert HEIC (High Efficiency Image Format) images into widely compatible JPEG or PNG formats. This ensures your images can be viewed and shared a...

ApyHub
ApyHub

300 Atoms

category icon file-conversion

Convert Markdown to JSON API

File Conversion

This API lets you upload and transform `Markdown` data to `JSON` format. This API is ideal for developers working on content management systems, static site generators, or any application where conte...

ApyHub
ApyHub

50 Atoms

File conversion related blogs

Recommended reads, articles and tutorials for developers, builders and those working on File Conversion applications.

File conversion and PDF Management using ApyHub
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File conversion and PDF Management using ApyHub
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October 05, 2022
Why ‘Utility as a Service’ Is a Critical Component of the Developer Toolset
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June 02, 2023
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October 08, 2025
APIs for Developers: Start with ApyHub
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APIs for Developers: Start with ApyHub
Unlocking the potential of APIs for developers with ApyHub. API integration, documentation and use cases.
muskan sidana
November 10, 2025
Building an Application Tracking System using Retool and ApyHub
Engineering
Building an Application Tracking System using Retool and ApyHub
Build your own Application Tracking System (ATS) using Retool and convert candidate CVs to PDFs with ApyHub. Retool is a powerful development platform for custom tools, and ApyHub offers simple APIs. Combine these tools to create a robust and scalable ATS for your organization.
sohail pathan
July 11, 2023

Frequently Asked Questions

You can convert a wide range of file types, including PDFs, Word documents, spreadsheets, text files, images, and videos. The APIs are designed to support diverse media formats commonly used in content platforms, CMS systems, and automation workflows.

No installation is required. All conversions happen via simple API requests, so you can integrate them into your application without configuring servers, libraries, or additional modules.

Yes. The APIs are built to scale, supporting high-volume and batch processing workflows. Whether you're generating thousands of previews or converting multiple videos, the system is optimized for performance and reliability.

Conversions are optimized for speed and typically complete in seconds. This makes them ideal for real-time user interactions—such as preview generation—or high-throughput backend automation.

Absolutely. You can generate video thumbnails, extract specific frames, convert clips to GIFs, and apply watermarks—all through streamlined APIs that work with both uploaded files and URLs.

Yes. Preview-focused APIs extract only what you need—such as the first page of a document, a keyframe from a video, or a thumbnail image—helping you improve load times and user experience.

Definitely. The APIs integrate smoothly with tools like Bubble, Retool, Zapier, and n8n. You can orchestrate powerful file conversion workflows without writing complex backend code.

Definitely. The APIs integrate smoothly with tools like Bubble, Retool, Zapier, and n8n. You can orchestrate powerful file conversion workflows without writing complex backend code.

You can apply text or image watermarks to videos during conversion, enabling branded previews, protected content, or enforceable copyright control—all handled programmatically.

Not at all. The APIs abstract away the complexity of video encoding, document parsing, and media processing. You simply send a request and receive the converted output in the format you need.

Whatever you are building, there's an API to support you

ApyHub APIs help you save time and reduce complexity.