| What it does | Desktop app that compresses Claude Code and ChatGPT Codex inputs locally to cut token costs by up to 50%
| Copy-paste Cursor rules, Claude Code skills and AGENTS.md files for AI agents in your stack
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| Stage | Not given
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| Founded | Not given
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| Based in | NL
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| Pricing model | Freemium
| Freemium
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| Pricing | Pro: $4/month billed monthly or $3/month billed annually (for Claude Pro or ChatGPT Plus); Max x5: $20/month billed monthly or $15/month billed annually (for Claude Max x5 or ChatGPT Pro $100); Max x20: $40/month billed monthly or $30/month billed annually (for Claude Max x20 or ChatGPT Pro); Team &
| Free packs available; paid packs use one-time Stripe Checkout payment (no subscription)
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| Key features | - Local input compression of tool output and boilerplate
- Reversible compression preserving retrieval of original content
- Real-time savings dashboard and activity tracking
- Eight optional add-ons for further optimization
- Support for Claude Code IDE extensions and agent runners
- Privacy-first architecture with all optimization on-device
- Compatibility with Claude Pro, Claude Max, ChatGPT Plus, and ChatGPT Pro
- Minimal latency overhead of approximately 52 milliseconds
- Support for Windows, macOS, and Linux operating systems
- Project learnings saved to agent instruction files
| - Cursor rules for different stacks and project types
- Claude Code skills for engines and tools
- AGENTS.md cross-platform rules
- Ready-made subagent roles
- Single prompts for specific jobs
- Bundled collections at discounts
- Packs for website types like SaaS, blogs and shops
- Game engine packs for Unreal, Unity, Godot
- App type packs for iOS, Android, Flutter
- Developer type packs for TDD and security review
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| What makes it different | - Achieves 25-50% token reduction on typical Claude Code sessions without requiring model subscription upgrades
- All compression runs locally on your machine with no data sent to servers
- Reversible compression preserves output quality and allows retrieval of original content on demand
- Works transparently with existing IDE extensions and agent runners without workflow changes
- Built on open-source Headroom CLI engine available free on GitHub
| - Test-first methodology integrated into agent configurations
- Ready-to-use, downloadable files that drop directly into repositories
- Cross-platform compatibility for Cursor, Claude Code and Codex
- Covers diverse stacks, genres and roles for different needs
- One-time payment model with no subscriptions
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| Free plan | Not given
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| Open source | Not given
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| Platforms | Not given
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| Public API | Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 15 ▲ +1 (up) since last check | 4 ▲ +1 (up) since last check |
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| Trust Flow (Majestic) | 6 | 0 |
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| Citation Flow (Majestic) | 31 | 0 |
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| Referring domains (Majestic) | 135 | 0 |
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Headroom
Startpacks