Substage
Hey all! I’m a solo indie dev and I’ve been working on Substage – a Mac app that docks under your Finder window and lets you interact with your files using natural language. Stuff like: • Convert to webp • zip these up • Author of this PDF? • Download this file: • Is this really a PNG? • What's 5 foot 9 in cm? • Open in TextMate Substage converts your prompt into a Terminal command using an LLM (GPT-4o, Claude, Gemini, Mistral, or your own local model), runs it, and summarises the output. If it detects something risky, it’ll pause for confirmation before running. Commands run locally on your…
Substage launched on May 12, 2025 with 183 votes, #188 of 7,905 launches that month and more than 95% of that year's launches. The site was still online in September 2026, 1 year on.
What it does
Substage is a natural language command bar that docks neatly underneath your Finder windows. Tell it what you want to happen, and it takes action: "convert to a 1080p mp4", "word count", "zip these up", "author of this PDF?" and more! Free to try!
A Mac app that puts a command bar below your Finder window and allows for media conversion, quick calculations, file management, and more.
Substage knows what files and folders you have selected in Finder. Just describe what you want to do, and it figures out the rest. Type what you want in plain English. Substage translates your request into the right Terminal commands, which is automatically analysed and can be confirmed before running. We love fast, lightweight models like GPT 4.1 Mini for snappy command execution. But you can also connect to local models via Ollama or LM Studio, or configure a custom setup - whatever works best for you. Substage Predicts simulates commands before they run, showing a clear summary of what will be created, changed, moved, deleted, or sent over the network. Use that preview to decide what…from selkie.design
In the maker’s words, at launch
Hey all! I’m a solo indie dev and I’ve been working on Substage – a Mac app that docks under your Finder window and lets you interact with your files using natural language. Stuff like: • Convert to webp • zip these up • Author of this PDF? • Download this file: <url> • Is this really a PNG? • What's 5 foot 9 in cm?…
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