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Polarr's advanced online photo editor offers desktop quality tools for pros and hobbyists without the need to downloading any app.

提供数百万个三维模型，登录后就能免费下载 The GrabCAD platform drives additive manufacturing at scale through connected solutions, including GrabCAD Print, GrabCAD Shop & the GrabCAD SDKs.

一个专门收集计算机，编程，数学，工程和技术书籍，讲义和教程等专业知识电子书的链接网站，内容全免费，有13个顶级类别和200多个子类别 Links to Free Programming, Computer, Mathematics, Technical eBooks and Lecture Notes all over the World, Directory of online free programming, computer, engineering, mathematics, technical books, ebooks, lecture notes and tutorials. Very well categorized. Equipped with advanced search engines.

免费高清视频资源 Download Free Quality HD stock footage and stock video. Hundreds of free stock footage clips..

国际知名站点，提供大量英文字体免费下载 Archive of freely downloadable fonts. Browse by alphabetical listing, by style, by author or by popularity.

一个音效素材搜索引擎，而且支持中文界面，有详细的音效分类，可以快速找到自己想要的音效素材。 Search the web for free sounds and sound effects

能极速压缩80%的图片体积，而不损害其质量 Picdiet is a fast and robust online batch image filesize compressor written in JavaScript, images are compressed in your browser, completely free

音效搜索引擎 Search the web for free sounds and sound effects

免费 Photoshop 画笔下载 BrushKing provide one of the largest collection of free Photoshop brushes, You can easily find and download them in the different sections of the website or via the search form

可对图片在线调色的渐变配色网站 Welcome to GradientsGuru.com for 198 beautiful gradients and 15 Blend mode images effects, This cool & strong collection is created by Trionn Design's designers and it's totally Free.

完全免费的在线WEBP转PNG转换器网站 Convert WebP images to PNG online. This simple converter will help you quickly convert images from .webp to .png format without losing quality.