About Struct
The developer data toolkit you deserve.
Why Struct exists
Every developer knows the drill: copy a JSON blob, Google "json formatter", click the first result, dismiss cookie banners, dodge ads, paste your data into a tool that sends it to their servers, and hope for the best.
In November 2025, researchers discovered that the top two JSON formatting sites had been leaking over 80,000 sensitive files containing AWS keys, database credentials, and API tokens from banks, government agencies, and healthcare organizations. For five years.
Struct exists because developers deserve better. A tool that's fast, beautiful, and private, where your data never leaves your browser.
What makes Struct different
100% client-side processing
Your JSON, CSV, YAML: all processed in your browser. Nothing is sent to any server. Verifiable: use Struct offline.
Instant, no friction
No signup, no loading, no ads. Paste data, get results in under 3 seconds.
One toolkit, not 10 tabs
Format, validate, diff, convert, generate code, query with AI, all in one place.
Built by
Struct is built by developers who were tired of pasting production secrets into random websites. We believe developer tools should respect your data, your time, and your intelligence.
Ready to try it? Open the JSON formatter : paste JSON, get results instantly. Read our privacy policy to learn how we protect your data.