OpenWrt固件下载

在线压缩和缩小 PDF、图像、JPG、CSS、JS、JSON 和 Zip 文件。 轻松免费在线压缩和优化各种文件。

Free mouse sensitivity converter for gamers. Convert DPI and sensitivity settings between Valorant, CS2, Apex Legends, Overwatch and 70+ FPS games. Preserve your muscle memory with precise eDPI calculations.

这是火狐官方出品的在线查询数据外泄，只要输入邮箱号，就可以查询该帐号有没有被泄露过数据，像以前的社工库，只不过不能查密文

A better and open source IP Toolbox. Easy to check what's your IPs, IP information, check for DNS leaks, examine WebRTC connections, test website availability, lookup DNS record, lookup Whois, and test latency from around the world.

2023年4月，上海图书馆联合汉仪字库定制的专属字体“上图东观体”完成制作，经过内部测试后，现正式向社会发布。这套字体包含常规、细体和粗体三种规格字重，每种字重复盖9169个字符，历时一年悉心打磨而成。

The best free file compress online tool. Shrink your image, video, audio, and documents size instantly and create a zip file for free.