ResizePixel is a free online image editor where simplicity is essential feature. It is designed to crop, resize, flip, rotate and convert images to various formats. The service is mobile-friendly, fast and easy to use.
DVDVideoSoft Image Convert and Resize - Free Image Convert and Resize is a compact yet powerful program for batch mode image processing.
GrowthList - A crowd-sourced list of growth hacks
Ralpha Image Resizer - High-speed image batch conversion tool
GrowthHackList - 100+ curated growth hacks for makers + early stage startups
ImBatch - ImBatch is a batch image processor with a nice graphical user interface.
Growth Hack World - Together We Rise