Angelina's Lab
Free AI Tools
Small tools I've built to scratch my own itch. Free to use, no login required.
TL;Listen
Turn articles and videos into audio briefings. Paste a link, get a podcast-style summary you can listen to on the go.
Learn more →Pomodoro Eye Care
A focus timer that forces you to rest your eyes. 25-min sessions with eye care exercises, ambient sounds, and browser notifications.
Learn more →Daily Brew
The morning digest you configure yourself. Write what you want to read in plain English and get an AI-curated brief on the topics you actually care about.
Powered by Yutori
Learn more →Frequently asked questions
Are these tools really free?
Yes. All three apps — TL;Listen, Pomodoro Eye Care, and Daily Brew — are free to use, with no subscription or paywall. TL;Listen and Daily Brew use a bring-your-own-key (BYOK) model, so you only pay the underlying API providers (e.g. Anthropic, ElevenLabs, Yutori) for your own usage. Pomodoro Eye Care doesn't need any keys at all.
Do I need to sign up or create an account?
No. None of the lab tools require an account, login, or signup. Open the link and you're in.
What does BYOK mean?
BYOK is short for "bring your own key." For TL;Listen and Daily Brew, you generate API keys from the underlying providers (Anthropic for Claude, ElevenLabs for voice, Yutori for scouts), paste them into the app, and they're stored locally in your browser — not on our servers.
Who builds these tools?
Angelina Yang, the sole operator of TwoSetAI and a fast.ai fellow. Each tool in the lab started as something she wanted for her own workflow and decided to share.
What kinds of tools are in Angelina's Lab?
Three so far, each solving a different daily friction: TL;Listen turns articles and YouTube videos into podcast-style audio briefings, Pomodoro Eye Care is a 25-minute focus timer with eye-rest exercises, and Daily Brew is a configurable AI morning digest you write in plain English. More are on the way.