Playground
See VerifyFetch in action. Try the live demo, explore code examples, and understand the memory benefits.
Live Demo
Watch real integrity verification happen in your browser. We'll fetch a file and verify its hash.
https://cdn.jsdelivr.net/npm/lodash@4.17.21/package.jsonComputing...Result
Click "Fetch & Verify" to run the demo
Code Examples
Basic
These are code examples for reference. Install VerifyFetch to run them in your project.
Memory Usage: Streaming vs Buffered
Native fetch with integrity buffers entire files. Use verifyFetchStream() to process chunks with constant ~2MB memory.
Buffered (fetch + integrity)
verifyFetchStream() (~2MB)
Note: Basic verifyFetch() also buffers the response. Use verifyFetchStream() for large files.
Ready to add integrity verification?
Get started with one command
npm install verifyfetch