Privacy-first compression vs upload compressors
TinyPNG and similar services excel at smart lossy codecs. The tradeoff is that your image travels to their servers. TCB Image Compressor runs in your browser with Canvas, before/after preview, target KB mode, HEIC ingest when supported, and ZIP batch download — with limits printed on the dropzone.
Choose TinyPNG-style tools when you need their specific encoder and are comfortable uploading. Choose TCB when drafts, client work or internal creatives should never leave the tab. Also see the Compare page and our guide on browser-local processing.
Related: Resizer, Converter, vs Smallpdf.