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Average Ratings 0 Ratings

Total 0 out of 5 stars
ease 0 out of 5 stars
features 0 out of 5 stars
design 0 out of 5 stars
support 0 out of 5 stars

No User Reviews. Be the first to provide a review:

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Description

Happy, often referred to as Happy Coder, is a free and open-source client available for both mobile and web platforms, allowing users to create, observe, and manage multiple sessions of Claude Code AI coding agents across a variety of devices including phones, tablets, laptops, and desktops, all while ensuring real-time synchronization through an encrypted relay system that enables users to continue their work on different devices without any loss of context. This system features three interconnected components: a locally running CLI program that launches and oversees the Claude Code sessions, a mobile or web application that securely connects to the CLI via end-to-end encryption to protect user data from being accessed by anyone, even the relay server, and a relay server that merely transmits encrypted data between devices without accessing the information itself; this architecture allows developers to use their preferred tools, editors, and workflows while integrating remote control functionalities effortlessly. Additionally, the seamless transition between devices promotes enhanced productivity and flexibility for users engaged in coding tasks.

Description

Headroom cuts the token costs of Claude Code and ChatGPT Codex by ~50%, which can mean up to 2x as much usage on the plan you already pay for. It is a menu bar app for macOS, Windows and Linux that compresses the bulky tool output, logs and boilerplate a coding agent sends with every request. Compression happens locally, before anything leaves the machine, so prompts and code stay private. Source code passes through untouched, and the agent can still fetch any original through a retrieval tool. On noisy inputs such as JSON tool results, logs and long documents, savings run at ~50% and up; typical coding sessions land at 25-50% overall. Across 183 Claude Code users over one week, Headroom reduced input tokens by 34% (measured) and output tokens by 33% (estimated). The app also includes a dashboard and activity feed with tokens and API-equivalent dollars saved, project learnings that turn past sessions into token-saving rules, and one-click add-ons: MarkItDown, Serena, Codebase Memory, Context7, Ponytail and Caveman. 7-day free trial, no credit card. Plans from $3/month.

API Access

Has API Yes 

API Access

Has API No 

Screenshots View All

Screenshots View All

Integrations

Claude Code Yes 
Grok Build No 
Model Context Protocol (MCP) No 
OpenAI Codex No 
OpenCode No 
Visual Studio Code No 

Integrations

Claude Code Yes 
Grok Build Yes 
Model Context Protocol (MCP) Yes 
OpenAI Codex Yes 
OpenCode Yes 
Visual Studio Code Yes 

Pricing Details

Free
Free Trial No 
Free Version Yes 

Pricing Details

$3/month
Pro is $3/month, billed annually ($36/year), or $4/month, billed monthly, for Claude Pro or ChatGPT Plus. Max x5 is $15/month, billed annually, or $20/month, billed monthly; Max x20 is $30/month, billed annually, or $40/month, billed monthly. Each plan includes a 7-day free trial with no credit card required. Team and Enterprise plans have custom pricing. A separate free, self-managed Headroom CLI is also available.
Free Trial Yes 
Free Version No 

Deployment

Web-Based No 
On-Premises No 
iPhone App Yes 
iPad App Yes 
Android App Yes 
Windows Yes 
Mac Yes 
Linux Yes 
Chromebook No 

Deployment

Web-Based No 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows Yes 
Mac Yes 
Linux Yes 
Chromebook No 

Customer Support

Business Hours Yes 
Live Rep (24/7) No 
Online Support Yes 

Customer Support

Business Hours No 
Live Rep (24/7) No 
Online Support Yes 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person No 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person No 

Vendor Details

Company Name

Happy Coder

Country

United States

Website

happy.engineering/

Vendor Details

Company Name

Garm Tech

Founded

2026

Country

Netherlands

Website

extraheadroom.com

Product Features

Product Features

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