Code.org App Lab
Code.org App Lab is a free, browser-based environment for making simple apps with JavaScript.
What Code.org App Lab is
Code.org App Lab is a free, browser-based environment for making simple apps with JavaScript. Beginners can use blocks or text to program, build interface screens in Design Mode, and share their apps through the tool. Its event-driven model lets interface elements respond to events, while Data Mode manages persistent information in a key-value store. Curriculum activities also use App Lab with BBC micro:bit and Adafruit Circuit Playground devices.
The App Lab page identifies ages 13 through 18, beginner level, and grades 8 through 12 as its curriculum audience. It works in modern browsers on laptops, Chromebooks, and tablets. Listed accessibility supports are text-to-speech, closed captioning, and Immersive Reader. English is the supported language. App Lab is free to use, and its page lists no paid plans or usage limits. CodeAI says it collects the minimum data necessary, does not sell student information, and designs its tools to comply with COPPA, FERPA, and GDPR. App Lab questions can be directed to Code.org support.
Good
- Free to use, with no listed usage limits.
- JavaScript programming is available through blocks or text.
- Design Mode supports interface screen creation.
- Includes text-to-speech, closed captions, and Immersive Reader.
- Works in modern browsers on laptops, Chromebooks, and tablets.
Watch out
- English is the only listed supported language.
- The page lists no free trial.
Who it suits
App Lab suits beginner learners, especially those in the listed ages 13–18 and grades 8–12 curriculum audience. It may also suit teachers using the listed micro:bit or Circuit Playground activities.
Verdict
App Lab combines beginner-oriented JavaScript programming with interface design, data, and sharing tools in a browser. Its listed audience and English-only language support are useful factors to weigh before choosing it.
Plans and prices
From Code.org App Lab's own pricing page, checked 11 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free | Free | App Lab is free to use; the App Lab page lists no paid plans or usage limits. |
The facts
Each one read from Code.org App Lab's own pages, with the date it was checked.
What it does
- Accessibility and language
- The page lists text-to-speech, closed captioning, and Immersive Reader accessibility support and English as the supported language.checked 11 Oct 2026
- Audience
- The App Lab page lists ages 13 through 18, beginner level, and curriculum for grades 8 through 12.checked 11 Oct 2026
- Data mode
- Data Mode manages persistent data in a key-value store.checked 11 Oct 2026
- Deployment options
- staticchecked 23 Sep 2026
- Design and sharing
- Users can design an app and share it through the tool.checked 11 Oct 2026
- Design mode
- App Lab includes Design Mode for creating user-interface screens.checked 11 Oct 2026
- Full-stack runtime
- Yeschecked 23 Sep 2026
- Integrations
- Curriculum activities use App Lab with BBC micro:bit and Adafruit Circuit Playground devices.checked 11 Oct 2026
- Notable limitation
- The App Lab page lists English as the supported language.checked 11 Oct 2026
- Organization
- CodeAI, formerly Code.org, describes itself as an education innovation nonprofit and says Code.org was launched in 2013.checked 11 Oct 2026
- Programming
- Users can program in JavaScript using blocks or text.checked 11 Oct 2026
- Programming model
- App Lab primarily uses an event-driven model so interface elements can respond to events.checked 11 Oct 2026
- Purpose
- App Lab is a browser-based programming environment for making simple apps.checked 11 Oct 2026
- Security and privacy
- CodeAI says it collects the minimum data necessary, does not sell student information, and designs its tools to comply with COPPA, FERPA, and GDPR.checked 11 Oct 2026
- Sharing controls
- access_controlchecked 23 Sep 2026
- Support
- Code.org's help center directs users with App Lab questions to [email protected].checked 11 Oct 2026
The company
- Founded
- 2013checked 4 Oct 2026
- Headquarters
- Seattle, Washington, United Stateschecked 4 Oct 2026
Money
- Free plan
- Yeschecked 23 Sep 2026
Where it runs
- Platform requirements
- The page lists laptops, Chromebooks, and tablets and says App Lab works in all modern browsers.checked 11 Oct 2026
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