About Toolshelf

Software should make the task smaller.

Toolshelf is the home for focused apps from Envelopes: useful software with clear pricing, respectful defaults, and less ceremony.

Why we build

Good tools should feel quieter than the problem.

Many everyday software tasks have become crowded with accounts, subscriptions, uploads, dashboards, and settings nobody asked for. Toolshelf takes the opposite approach: understand the job, make the common path obvious, and keep the person using the software in control.

We are especially interested in tools that can run locally. When a file does not need to leave your computer, it should not.

Our principles

Private, practical, and honest about the tradeoffs.

Private by designPrefer on-device processing instead of uploading personal files.
Clear pricingSay what it costs, what is included, and whether it renews.
Useful defaultsThe main workflow should work without a technical setup ritual.
Human supportWhen something unusual happens, there should be a real way to ask for help.

Our first Mac release

CleanCut started with one awkward video problem.

People often need a shareable copy of a video with language muted, useful subtitles, or a format that will actually play on the destination device. The traditional answer is a full video editor or an online upload service.

CleanCut brings those three jobs together in one focused Mac app. The AI transcription and video processing happen on the computer, and the original file stays under the customer's control.

Explore CleanCut

Next on the shelf

PolishKey brings that local-first idea to everyday writing.

Short support replies, emails, and notes often need a quick second pass. PolishKey is designed to rewrite selected text from a hotkey using a local model instead of a cloud writing service.

Like every Toolshelf app, PolishKey gets its own product IDs, license benefit, release assets, and support notes.

Explore PolishKey

Say hello

Questions, feedback, or a strange video file?

Reach us at Envelopes.app.com@gmail.com.

Email us