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MarlonSP's avatar
MarlonSP
Brass Contributor
Jun 11, 2026

How can I compress image size under 100kb without losing quality

Hello everyone, My new website is currently under development, but many of the original JPEG images are over 2MB each. For better page loading speed, the goal is to reduce the file size to under 100...
BreckenFoster's avatar
BreckenFoster
Steel Contributor
Jun 11, 2026

Lepton is an open-source command-line tool developed by Dropbox that compress image size without losing quality; it is designed specifically for JPEG files.

Instructions: Open a terminal or command prompt, navigate to the folder containing the JPEG image, and run the command:

lepton input.jpg compressed.lep

to begin compression.

To restore the file later, use the command:

lepton -d compressed.lep restored.jpg.

Its advantages include: completely lossless compression, reliability verified as a Dropbox project, the ability to restore files to their original state at any time, and compatibility with subsequent lossy compression workflows.

Disadvantages include: command-line operation only with no graphical interface, a steep learning curve for beginners, support for JPEG files only, and the requirement to use software to decompress files before viewing or editing them.

This allows you to compress image size without losing quality. It is suitable for advanced users, server-side workflows, and scenarios requiring long-term archiving of JPEG images with lossless preservation.