职场技能提升​

免费API - 提供免费接口调用平台

With VERT, you can quickly convert any image, video, audio, and document file. No ads, no tracking, open source, and all processing (other than video) is done on your device.

OLMOCR leverages advanced large language models to extract text from any Image or PDF for free, with unparalleled accuracy and intelligence.

无需登录，快速批量合并发票！支持每页2/3/4张布局，保障数据隐私，操作简单，高效快捷。财务报销人员必备工具，早下班利器

Convert videos, images, and documents instantly with no sign-up. Converter App supports large files over 1GB, high-quality 4K video encoding, and secure data transcription. 100% free and private.

Stirling PDF

Easily crop images into perfect circles online - free tool for creating round profile pictures, circular photos, and round image crops. No signup required.

语雀

Online PDF converter, free PDF converter, convert your files to PDF format, or convert PDF format to other types, no need to download or install any software; simple, efficient, one-click operation, keep the original file format

Make PDFs and images look like scanned copies with ScanNerd! Add scanner effects in seconds, customize to get the scanned look, and convert for free & secure.

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我们为学生收集整理了各类软件工具、购物优惠、娱乐服务和AI工具的学生专享福利，帮助学生节省费用，提高学习效率。

酷酷API是酷酷免费提供API数据接口调用服务平台 - 我们致力于为用户提供稳定、快速的免费API数据接口服务。

Zemail is most reliable temporary email service on the web to keep spam out of your mail by offering you to use a real Gmail email address.

中国区 GitHub 用户排行榜，按照 Followers 数量排序，展示中国优秀开发者

XTools - Your Online Toolbox for file conversion, text processing, image compression and more. It's a free, open-source, and data-secure toolbox.

爱改写是一款集AI检测、生成内容识别、智能去痕与文本优化于一体的内容改写平台。支持论文降AI率、自媒体去痕、小说优化、同义词替换与文本纠错，让AI生成内容更自然、更原创、更可信。

Encrypt and decrypt Text, Files or Folders, all Locally.

奇客软件致力于开发功能免费强大且易用的免费PDF工具、录屏、数据恢复、手机解锁、图片压缩、OCR识别、分区工具、手机解锁和设备管理等。

Instantly convert PDF, Word, PowerPoint, Excel, HTML and more to clean, well-formatted Markdown. Our free online tool preserves document structure, formatting, and content with high accuracy. No registration required.