在线工具

GK扫描仪提供最智能的文档管理方案。手机、平板、电脑变身随身携带的扫描仪、文件库，随时随心编辑文档，快速同步，时时分享，有效沟通。

A treasure trove of free English ESL handouts pdf & doc, slides, video quizzes with reading & listening comprehension exercises, vocabulary & grammar practice

Change your PDFs into JPG images with our 100% free, secure, and anonymous online converter. Upload, convert, download - done!

,牧夫天文网

Get English language teaching and learning resources for teaching English to young learners, teenagers, and adults.

Use our Online Video Trimmer to cut a fragment from any video! It supports any video format - MP4, AVI, 3GP, and many more! You can clip video files up to 4 GB! Try our free tool today!

Compress MP4, MOV, MP3, PDF, PNG, JPG, JPEG, GIF files online for free. Reduce file size of videos, PDF documents, MP3 audio files and images. Free online file compression tool lets you compress large files to make them smaller. No registration, no watermarks, free to use for anyone.

Convert your files online, instantly and for free: documents, video, audio, images, e-books, archives. You can also view your document directly in our Viewer page. And there is no need to download any software.

Free online video converter, audio converter, image converter, eBook converter. No download or account required.

在线免费转化所有的图片格式，支持的图片格式包括：JPG, PNG, Gif, BMP, tiff, ico, pnm, pbm, ppm, pgm和svg……

几秒钟内将PPT转换为DOCX文件的最佳方法。 100％免费、安全并便于操作！ Convertio — 解决任何文件任何问题的先进在线工具。

在线免费转化所有的图片格式，支持的图片格式包括：JPG, PNG, Gif, BMP, tiff, ico, pnm, pbm, ppm, pgm和svg……

专注于语音转文字、音视频降噪、监控视频搜索、文本合成语音、照片失真修复等人工智能技术与软件研发。

PickFrom - the platform that makes it super easy to edit all your vidoes. Solving all your video problems in one place - and yes, free.

Instantly convert PDF to DOC with this free online converter.

网站提供实用的互联网转换工具，让您轻松解决各种文件转换问题。我们提供在线OCR文字识别转换、在线PDF转换、在线Office转换（例如Word转图片、PPT转图片）、以及在线苹果HEIC转换JPG，PDF去水印等多种实用工具。快来使用WDKU，让您的文件转换变得更加直接高效！

Explore ideas worth spreading

:octocat: 分享 GitHub 上有趣、入门级的开源项目。Share interesting, entry-level open source projects on GitHub. - GitHub - 521xueweihan/HelloGitHub: 分享 GitHub 上有趣、入门级的开源项目。Share interesting, entry-level open sourc...

With Soda PDF's easy-to-use Optical Character Recognition (OCR) online tool, turn text within an image or scanned document into a customizable PDF file.

人人都能用英语. Contribute to xiaolai/everyone-can-use-english development by creating an account on GitHub.

Free chrome extension for data collection from any websites. Export web data to Excel in a moment. Access clean data with web scraping services that drive your business forward.

The place where English Language teachers share resources: worksheets, lesson plans and more.

ESL Worksheets, English Exercises, Printable Grammar, Vocabulary and Reading Comprehension Exercises, Flashcards, Vocabulary Learning Cards and Games For Kids