* [tinypng.com](https://tinypng.com/) — API to compress and resize PNG and JPEG images, offers 500 compressions for free each month
* [filestack.com](https://filestack.com/) — File picker, transform and deliver, free for 250 files, 500 transformations and 3 GB bandwidth
* [packagecloud.io](https://packagecloud.io/) — Hosted Package Repositories for YUM, APT, RubyGem and PyPI. Limited free plans, open source plans available via request
* [image-charts.com](https://image-charts.com/) - Unlimited image chart generation with a watermark