Last updated 08-03-2026
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EchoComet
EchoComet gathers code context from your project folders on Mac and sends it to web-based AI assistants like ChatGPT, Claude, and Gemini. You browse your file tree, select files or directories, and EchoComet bundles the code with your question into one organized prompt block. Everything runs locally on your machine with no server-side data storage.
IDE copilots cap context at a few thousand tokens, which breaks down on large refactors or multi-file bugs. EchoComet targets web LLMs with million-token windows instead, so you can ship an entire module plus your question in one shot. Built-in token counting, line stats, and an AI question improver help you stay within limits without guessing.
Mac developers who bounce between Xcode projects and browser-based ChatGPT sessions get the most value. Data scientists feeding notebooks to Claude and freelancers reviewing client repos before asking for help also fit the workflow. You bring your own API keys for OpenAI, Anthropic, Google, and xAI.
Browse and select files or entire folders from your local project without manual copy-paste
Bundles selected code with your question into a single organized prompt block for web LLMs
AI question improver analyzes your code context and sharpens prompts for clearer LLM responses
Shows line count, character count, and estimated token usage before you send
Lifetime license at $14.99 covers 3 devices with 1 year of updates included
Connects to OpenAI, Anthropic, Google, and xAI using your own API keys
Bundles multi-file code context for web LLMs with million-token windows.
All processing happens locally with no server-side code storage.
One-time $14.99 purchase with no recurring subscription.
Built-in token counting helps you stay within LLM context limits.
macOS only with no Windows or Linux support.
Requires your own API keys for OpenAI, Anthropic, Google, or xAI.
Updates beyond the first year may require a separate purchase.
What is EchoComet?
EchoComet is a macOS app that gathers code from your project files and sends it with your questions to web-based AI assistants like ChatGPT and Claude. It organizes selected files into a single prompt block for LLMs with large context windows.
How much does EchoComet cost?
EchoComet costs $14.99 as a one-time lifetime purchase with no subscription. The license covers use on 3 devices at a time and includes 1 year of software updates.
Which platforms does EchoComet support?
EchoComet runs on macOS 10.15 Catalina and newer as a universal binary for both Intel and Apple Silicon Macs. There is no Windows or Linux version listed on the site.
Does EchoComet store my code on a server?
No, EchoComet processes everything locally on your device. The privacy-first design means your code and API keys never pass through EchoComet servers.
Which AI services work with EchoComet?
EchoComet connects to OpenAI, Anthropic, Google, and xAI through your own API keys. You send bundled code and questions directly to these web-based LLM platforms from the app.
How is EchoComet different from IDE copilots?
EchoComet feeds code to web LLMs with million-token context windows rather than IDE plugins capped at smaller limits. That makes it better suited for multi-file problems that exceed typical copilot context sizes.