MantleDB

Handles file uploads and encoding of video, audio, images, documents. Free for Open source, charities, and students via the GitHub Student Developer Pack. Commercial applications get 2 GB free for test driving

Encrypt, share, copy, and move all your cloud storage files from one place. The basic plan provides unlimited file transfer with 250 MB max. file size and allows five encrypted files

Free online tools. Convert or edit documents, images, audio, video, and more.

Responsive images as a service. It provides an image CDN, a media processing API, and a frontend library to automate image optimization. The service is free for up to 3GB of traffic/per month.

API to compress and resize PNG and JPEG images, offers 500 compressions for free each month

Create all the optimized versions of your images and videos. For Free. In bulk. For each image, you get the following formats: AVIF, WEBP and JPG in the three selected resolutions (desktop, tablet, mobile) For videos, you get: WebM (codec VP9), MP4 (codec HEVC aka H.265) and MP4 (codec AVC aka H.264

Generate embeddable image charts, graphs, and QR codes

Ultra-secure cloud storage for files and key documents. Free plan offers 5gb of storage space.