iZap - piZap Photo Editor is fun and easy to learn online photo editor & collage maker. Tons of effects, fonts, stickers, collage layouts, borders, frames, and editing tools.
Visily - The easiest and most powerful wireframe software for agile teams.
Bazaart - Create. Discover. Love. Social photo collage editor
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PhotoRoom - Create studio-quality product pictures in seconds.
Zeplin - Collaboration app for UI designers & frontend developers