工具页 Tool demo demo
SVG Spark：浏览器里的 10 个本地小工具（SVG 转图、对比度、社交图裁切…） SVG Spark: 10 client-side tools (SVG convert, contrast, social crop, and more)
SVG 转图、对比度、社交裁切，全在本地浏览器里完成。 SVG convert, contrast, and social crop—all local in the browser.
详细介绍Details
一页集合了十个完全在浏览器里跑的小工具，文件不上传。和设计相关的包括：SVG 批量转 PNG/WebP、带平台安全区的社交图裁切、WCAG 对比度检查；另外还有正则可视化、PDF 拆合、JSON 转 CSV/Excel、字幕去时间码、UTM 链接、SQL 格式化、Markdown 预览。适合做图标、海报和落地页素材时顺手转换和检查的人，整站本地处理，适合不想把图传到第三方的场景。 One page with ten utilities that run entirely in the browser—nothing uploads. Design-related ones include batch SVG→PNG/WebP, social-image crop with platform safe zones, and a WCAG contrast checker; also regex visualizer, PDF split/merge, JSON→CSV/Excel, SRT cleanup, UTM builder, SQL formatter, and Markdown preview. Handy when you are converting icons or poster assets and checking contrast without sending files to a third party.
适合学什么What to learn
- 工具页 Tool
在浏览器里生成 CSS/HTML 的小工具。 In-browser tools that generate CSS or HTML.
- demo demo
该类型下收录的公开 HTML 页面。 Public HTML pages listed under this type.
为什么推荐Why we recommend it 本库没有逐个点开实测转换结果。 This library did not run each tool end-to-end.
核验记录：来源、抓取与截图说明Verification log: sources, checks, and captures
线索 HN item 50013931（2026-10-08T23:32Z，约 10-09 07:32 北京时间，撰写时 25pts）。页面早间 HTTP 200，十个工具名称和「Nothing ever leaves your device」照首页写。已配 Playwright 实拍 3:2 自托管预览。Lead: HN item 50013931 (2026-10-08T23:32Z, about 07:32 on 10-09 Beijing time, 25pts at write time). Page HTTP 200 this morning; the ten tool names and “Nothing ever leaves your device” follow the homepage. Includes a Playwright-captured self-hosted 3:2 preview.
