Online File Converter - JSON, XML, Excel, PDF & More

Capterra: ConversionTools.io Best Ease of Use 2025

Capterra: ConversionTools.io Best Ease of Use 2023

For Developers

File Conversion API

Integrate 100+ file formats into your application. Simple pricing, unlimited sandbox testing.

Unlimited sandbox testing
OpenAPI specification
Node.js, Python, and PHP libraries
300 free API calls/month + 100 AI credits/month

// npm install conversiontools

// v2: Full TypeScript support, streaming, progress tracking
import { ConversionToolsClient } from 'conversiontools';

const client = new ConversionToolsClient({
  apiToken: 'YOUR_API_KEY',
});

// Convert XML to Excel
await client.convert({
  type: 'convert.xml_to_excel',
  input: './data.xml',
  output: './result.xlsx',
  options: {
    sandbox: true,  // Free testing
  },
});

console.log('File saved to: ./result.xlsx');

Excel (xlsx, xls)

Word (docx, doc)

PowerPoint (pptx, ppt)

OpenOffice (ods), etc

Apache Parquet columnar format

Big data analytics

JSON Lines (NDJSON)

One JSON object per line

AVIF

BMP

GIF

HEIC

JPEG XL (JXL)

JPG, JPEG

PGM

PNG

PPM

SVG

TIFF

WebP

Select the converter you need and upload your file. We support files up to 100 GB.

Click "Run Conversion" and we'll process your file securely in the cloud. Most files convert in seconds.

Download your converted file instantly. Files are automatically deleted after 24 hours for your privacy.

Supported formats: JSON, XML, Excel, CSV, Word, PDF, ePUB, JPG, PNG and more

Our platform supports numerous file formats for document, image, and eBook conversions, plus website data extraction capabilities for comprehensive digital transformation needs.

Explore Converters

Secure access to your conversion history and account settings

The user dashboard gives you access to your conversion history, allowing you to track, manage, and download your converted files anytime, from any device.

Create Account

Dedicated assistance for all your conversion needs

Need help with a specific conversion or have a custom request? Our support team is ready to assist with personalized solutions and typically responds within 48 hours.

Get Support

Conversion Tools provides advanced file conversion capabilities for documents, data, eBooks, multimedia, and more. When standard converters don't meet your specific requirements, our custom solutions can help.

Many of our enterprise clients require specialized data processing beyond generic file conversion. For example, you might need data extraction, transformation, or integration with existing workflows.

For these situations, we offer Custom Converter development services tailored to your specific business requirements and data processing needs.

Explore Custom Solutions

Would you like to Automate the files Conversion process ?

Would you like to create easy-readable documents (Excel, PDF) from the machine-readable files (XML, CSV) ?

Are you struggling with XML format and spending time to understand the data ?

Would you like to generate printable documents (Excel, PDF) based on the templates ?

Would you like to integrate the conversion process with the data coming from other systems ?

Looking for a complete and cost-effective solution ?

We offer a service to create the complete software solution to automate the conversion process or to automate the generation of the documents based on Business Requirements.

Use the form below to contact us. We usually reply within 24 hours.

Click here to show the 'Contact Us' form.

We support 100+ file formats including JSON, XML, Excel, CSV, PDF, Word, ePUB, images, and more. Check our converters list for all available formats.

Free users can convert files up to 10 MB. Paid plans support files up to 100 GB. View our plans for details.

Yes. We use AES-256 encryption and TLS 1.3 for all transfers. Uploaded files are deleted immediately after conversion, and converted files are automatically deleted after 24 hours.

No account required for basic conversions. Create a free account to get higher limits, conversion history, and access to advanced features.

Yes! Our REST API lets you integrate file conversion into your applications. We offer libraries for Node.js, Python, and PHP.

Yes. Use our API for programmatic access, or explore automation options including Zapier integration and custom workflows.

08.02.2026

New Converters: Markdown Support

Added new Markdown converters for converting between Markdown and other document formats:

These join existing Markdown to PDF, Markdown to HTML, and Markdown to ePUB converters. Browse all at Markdown Converters.

Discover more updates and improvements on our News page.