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OJF - Online JSON Formatt
Dev tools that never touch your data. Format, convert, fix.
Problem: Developers often deal with messy JSON, XML, and Parquet data broken APIs, unformatted configs, and format conversions. Many online tools upload data, require sign-ups, or fail on large files. Solution: Online JSON Formatt is a free browser-based toolkit with 20+ tools that format, validate, compare, convert, and fix data locally. Built with Rust-WASM and Web Workers, it handles 100MB+ files without freezing your browser.
Hey Product Hunt! 👋
We're Kartik & Bhavya - an engineering couple who've been coding together since our college days in 2014.
Why we built this: Back in 2016, we hacked together a JSON formatter as a college project. Life happened - I pursued the Indian Armed Forces (reaching final SSB rounds multiple times yet failed to crack), eventually we both landed at TCS, got married in 2024, and that project collected dust.
Then one late night, laptops open side-by-side, we asked ourselves: "Remember how ambitious we were in college? Why not actually ship something?"
So we dusted off that old college project and rebuilt it from scratch - this time with proper engineering. Rust-WASM for speed, Monaco Editor (the same engine behind VS Code) for editing, DuckDB for Parquet files, and a privacy-first architecture where your data literally never leaves your browser.
What changed from our college days: We went from "it works on my machine" to a production-grade platform serving developers in 6 languages, handling 100MB+ files, and scoring 100/100 on Lighthouse.
Who it's for: Any developer who's ever:
- Stared at a 500-line unformatted API response at 2 AM
- Needed to quickly convert JSON to CSV for a stakeholder
- Worried about pasting sensitive data into random online tools
- Had a JSON tool crash on a large file
We'd genuinely love your feedback:
- What tools would you add?
- What's your biggest pain point with online dev tools?
- Did we miss your favourite format conversion?
Try it out, break it, tell us what sucks. We're building this for devs like us and like you.
Kartik & Bhavya 🚀
About OJF - Online JSON Formatt on Product Hunt
“Dev tools that never touch your data. Format, convert, fix.”
OJF - Online JSON Formatt was submitted on Product Hunt and earned 3 upvotes and 1 comments, placing #156 on the daily leaderboard. Problem: Developers often deal with messy JSON, XML, and Parquet data broken APIs, unformatted configs, and format conversions. Many online tools upload data, require sign-ups, or fail on large files. Solution: Online JSON Formatt is a free browser-based toolkit with 20+ tools that format, validate, compare, convert, and fix data locally. Built with Rust-WASM and Web Workers, it handles 100MB+ files without freezing your browser.
On the analytics side, OJF - Online JSON Formatt competes within User Experience, Developer Tools and Tech — topics that collectively have 1.5M followers on Product Hunt. The dashboard above tracks how OJF - Online JSON Formatt performed against the three products that launched closest to it on the same day.
Who hunted OJF - Online JSON Formatt?
OJF - Online JSON Formatt was hunted by Kartik Gupta. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of OJF - Online JSON Formatt including community comment highlights and product details, visit the product overview.
Kartik Gupta