DevVault
All the dev tools you usually paste your secrets into — running 100% offline in your browser.
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Dade Toggle
Adds a toolbar button to toggle dark mode on all active tabs using CSS filter inversion. Version 1.0: Basic toggle using invert and hue-rotate filters.
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Emoji Sprinkler
Give web pages a cheerful upgrade by sprinkling relevant emoji after keywords such as pizza, music, star and more. Dial the amount up or down with a slider and revert to the original whenever you like.
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Quick Convert
A selection tooltip plus a typing box for length, weight, volume, speed and more.
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Bricks Breaker Game - By Mr.Bear
Classic brick breaker with honeycomb bricks! Break them all!
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Measure Mate
Understands feet and inches, fractions, ranges and degrees across eight categories.
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Crontab Buddy
A calm companion for crontab syntax. Type a schedule and get a sentence you can actually read, the upcoming run times with how long until each one, and every field expanded so you can see exactly which minutes, hours, days and months are selected. Ca
IPTrace
Instantly reveals your public IP, ISP, ASN, timezone, country and real GPS location. Built with a cybersecurity UI for developers, network engineers and security enthusiasts.
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Page Weight X-Ray
See how heavy a page really is. Breaks down total transferred bytes by resource type — scripts, CSS, images, fonts, media and more — with per-type counts and bars, using the browser's Performance API.
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Tremor Radar
A radar for tremors: magnitude bands, depth, distance and bearing from your chosen point, with optional alerts.
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UniBlitz
Blitz Through Evaluations. Unlock Your Results, Because You’ve Got Better Things Than Rating Professors.
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新媒体运营平台 koL5.cc 刷播放量 涨粉买赞
B站运营数据中心 52fen.top 提供UP主成长分析、视频表现监测与社区生态研究服务。海外入口：xhsfen.top 浙江研究节点。全网内容增长研究站 1fen.top 专注抖音、小红书、微博、快手与B站内容运营分析、SEO优化与自然流量增长策略研究。海外入口：5ifen.cc 北京朝阳创作者节点。
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Well-Known Ports Reference
A searchable reference of well-known and common ports with service names, protocols and descriptions, including many DevOps and database ports. Search by number or service. Offline.
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CSS Tweaks
Small style fixes per domain, with wildcards, on/off switches and JSON backup.
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Ping Sentry
Keep an eye on availability: background HTTP checks with timeouts, latency display and per-site uptime history.
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