"Make this under 200KB" — pick a target and every photo is squeezed to fit, at the best quality that still hits it. Free, batch, nothing uploaded.
Most compressors give you a quality slider and leave you guessing. But real limits are numbers: a job portal that rejects CVs over 2MB, a government form capped at 200KB, an email attachment limit, a page-speed budget. This tool works backwards from the number — it searches for the highest quality setting that still lands under your target, per image, automatically.
Each image is re-encoded repeatedly at different quality levels (a binary search, so it converges in a handful of tries) until it finds the best one that fits. If even the lowest quality is too big, the image is scaled down in steps until it fits. Everything happens in your browser — the photos are never uploaded, which also means there is no file-size cap and no queue.
Choose WebP if whatever you're uploading accepts it — it typically reaches the same file size with visibly better detail than JPG. If your target is aggressive (say 100KB for a big photo), set a max width too: a sharp 1200px image at 100KB looks far better than a soft 4000px one at the same size.