CodeSandbox Watermark Minimizer

Name: CodeSandbox Watermark Minimizer
Author: Issac Chan

Make the CodeSandbox "Open Sandbox" overlay less intrusive by replacing it with a tiny bottom-right "dev" link.

As of June 2026, CodeSandbox Watermark Minimizer has — users in the Developer Tools category.

Issac Chan Developer Tools

Chrome Web Store ↗.crx

Users0%

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Rating0%

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— reviews

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Version

1.0.5

Manifest V3

History

2 snapshots

Tracking since Apr 18, 2026.

Not enough history yet for this metric — the chart fills in as we collect more snapshots.

View as table

Date	Users	Rating	Reviews	Version
Apr 18, 2026	—	—	—	1.0.5
Apr 28, 2026	—	—	—	1.0.5
Now	—	—	—	1.0.5

Permissions & access

Permissions: None declared
Host access: None declared

Screenshots

CodeSandbox Watermark Minimizer screenshot 1

About

CodeSandbox Watermark Tiny is a lightweight developer utility that reduces visual clutter on CodeSandbox preview pages (*.csb.app) by removing the default “Open Sandbox” overlay and adding a minimal “dev” button in the bottom-right corner.

What it does:
- Removes the injected watermark iframe overlay on CodeSandbox preview pages.
- Adds a tiny, rounded white “dev” button with a small screen margin so it won’t cover your content.
- Keeps one-click access to the corresponding sandbox page by mapping https://{id}.csb.app/... → https://codesandbox.io/s/{id}.

Why install:
- Cleaner screenshots/recordings for demos.
- Less obstruction for mobile and small-screen previews.
- Faster access to the sandbox source via a consistent “dev” link.

Notes & transparency:
- Works only on CodeSandbox preview domains (*.csb.app).
- This extension modifies page UI locally in your browser; it does not change the hosted site for other users.
- It does not collect, store, or transmit personal data.

Developed by Issac from Hong Kong, https://issacchan.com.