About FastDataTools
We build free, secure, and fast developer tools to make data interoperability simple for everyone.
Instant Performance
Our tools run 100% in your browser using WebAssembly and modern JavaScript. No server latency, no queues.
Privacy First
Data never leaves your device. We believe in privacy by design. Ideal for sensitive corporate or personal data.
Format Agnostic
From JSON to CSV, XML to SQL, Markdown to HTML. We support dozens of formats and are adding more every week.
Free Forever
Our mission is to democratize data tools. The platform is completely free to use.
Our Story
FastDataTools was founded with a simple goal: to replace the dozens of slow, ad-ridden, server-side converters that exist on the web with a single, modern, privacy-focused platform.
Developers and data analysts often need to switch between formats quickly. Uploading a 50MB CSV file to a server just to get a JSON array back is inefficient and insecure. We leveraged modern browser capabilities to solve this.
We continuously improve and add advanced tools while ensuring accuracy and reliability.
Thank you for using our tools. If you have suggestions or need a new format supported, please reach out!