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Lightpanda vs SigDek

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Lightpanda compared with SigDek
DetailLightpanda logo LightpandaSigDek logo SigDek
What it doesThe AI-native web browser built from scratch for machines Evidence of what your AI coding agents did
StageNot given Not given
FoundedNot given Not given
Based inNot given US
Pricing modelFreemium Freemium
PricingExplorer: Free with 10 browser hours per month and 5 concurrent sessions. Builder: $19/month with 300 browser hours per month and 30 concurrent sessions, then $0.08/hour. Enterprise: Custom volume pricing with dedicated support and SLA guarantees. Free for one developer on their own machine. Team plan $99 a month for up to 10 people. Business plan $199 a month for up to 50 people. All paid plans include unlimited machines, records and reports, support for Claude Code and Cursor, Flag and Block rules, and 13 months of records. 14-day free tria
Key features
  • True headless without CSS, images, layout or GPU compositing
  • Full JavaScript execution via V8
  • CDP-compatible with Playwright and Puppeteer
  • Multi-client concurrent CDP connections in a single process
  • Request interception to block, modify or mock HTTP requests
  • Robots.txt compliance via obey_robots flag
  • 9x faster execution than Chrome headless
  • 16x less memory usage than Chrome headless
  • Built in Zig for performance and efficiency
  • Purpose-built for headless operation without rendering overhead
  • Records commands, file edits, web requests and MCP calls from Claude Code and Cursor
  • Hash chain verification to detect changes, gaps or deletions in records
  • Block rules to stop matching actions before they run
  • PDF and CSV reports for auditors covering up to 13 months
  • SOC 2 criteria mapping for security reviews
  • Flag rules that mark risky actions out of the box
  • Verifiable reports that anyone can check on verify page
  • Open-source recorder for local use without account
  • Support for unlimited machines per team member
  • Automatic background upload with minimal performance impact
What makes it different
  • Not a fork or patch of existing browsers but built completely from scratch
  • Designed specifically for cloud environments rather than adapted from desktop browsers
  • 10x faster execution and 10x less RAM than Chrome headless
  • Isolated environments without persistent state for secure automation
  • Open source under AGPL-3.0 license with production-ready 1.0 release
  • Hash chain verification ensures records cannot be altered or deleted without detection
  • SOC 2 audit-ready reports with six criteria-mapped sections
  • Never records prompt text, file contents or command output for privacy
  • Block rules stop risky actions before they execute
  • Takes under 50ms per action with background uploads
Community votes00
DR (Domain Rating by Ahrefs)47 +1 (up) since last checkNot checked yet no change since last check
Trust Flow (Majestic)280
Citation Flow (Majestic)360
Referring domains (Majestic)7840

5 details filled in for both companies.

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