POC Preview - Quickly HTML/CSS/JS Playground
Quickly preview HTML/CSS/JS POCs with live rendering.
Instant regex tester: flags, live highlights, groups, and replace preview. Works fully offline. No permissions.
查看最近 30 天的用户变化。
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同口径展示 1 天、7 天、30 天的绝对增长与增长率。
查看发布时间、版本、支持语言、最近更新和抓取时间。
查看插件说明、主要功能和适用场景。
Regex Lab is a lightweight, offline regular-expression tester built for clarity and speed. Enter a pattern, pick flags (i, g, m, s, u, y), paste test text, and see live highlighting, match counts, execution time, capture groups, and an optional Replace preview (supports $1, $2, …). You can copy the highlighted HTML or copy the replaced output in one click.
Why it’s safe and easy to approve
No permissions required (no tabs, no storage, no clipboard permission).
Works fully offline — nothing leaves your browser.
No site access and no content scripts; it doesn’t modify web pages.
No background tasks, no tracking, no external network requests.
查看最近评论和评分分布。
查看 Chrome 商店详情页中的相关产品。
Quickly preview HTML/CSS/JS POCs with live rendering.
HackTools++: Repeater, Intruder, Decoder, and Scanner in DevTools. Capture, edit, and replay HTTP requests for testing.
Extract HTML & CSS from any element with live preview, smart selector simplification, and syntax-highlighted editor
From idea to experiment in seconds: type a change, get code, preview immediately.
Plain Text Editor: a simple online notepad to quickly edit the text, jot bloc note and make txt file effortlessly.
Test REST APIs directly from your browser