Diff Checker v2

Paste two versions of any code snippet and see exactly what changed — with syntax highlighting and inline character-level diff. Choose between unified (GitHub-style) or split side-by-side view. Auto-detects JavaScript, TypeScript, Python, Rust, Go, SQL, CSS, JSON, and YAML. Runs 100% in your browser — nothing is sent to any server.

Share this tool: X / Twitter LinkedIn

Related Products

on Gumroad

More Free Tools

Get weekly developer tips

Tool guides, productivity playbooks & AI tricks. Free. No spam.

DevPlaybook Pro 7 days free

Unlock AI-Powered Dev Tools

  • ⚡ AI Code Review, Doc Generator & SQL Builder
  • ⚡ All premium templates & early access
  • ⚡ Member discounts on Gumroad products
Start Free Trial →

$9/mo after trial · Cancel anytime

Want the full toolkit?

Get DevPlaybook Pro

Every template, guide, boilerplate, and automation script in one bundle. 13 premium products — grab them all at once and save big.

$79
$241 separately Save $162 (67% off)
Get DevPlaybook Pro — $79 →

MIT licensed · Instant download · No subscription

See what's included → Browse all deals →