ImageLean
No upload required Browser-based Local processing 1 formats

Compress PNG to 50KB

Use repeated compression passes to get as close as possible to 50KB. PNG remains the default output unless you switch formats manually.

Compression Settings

Lower quality = smaller file size

File sizes use KiB (1,024 bytes) and MiB. Target sizes are best effort and may not be reached.

Processing and limitations

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ImageTiny app icon

ImageTiny

Compress + batch

Need faster photo compression on iPhone?

ImageTiny handles on-device compression, crop, resize, format conversion, and EXIF cleanup, with batch processing for up to 200 photos.

On-device Batch 200 Privacy-first
Download on App Store

Best for common iPhone photo workflows like HEIC, JPG, PNG, and WebP.

Related Tools

8
Compress PNG Reduce PNG size for screenshots, UI assets, and transparent graphics. Compress PNG to 200KB Reduce PNG size to a target limit for screenshots and transparent assets. Compress PNG to 100KB Reduce PNG size to a target limit for screenshots and transparent assets. Compress PNG to 20KB Reduce PNG size to a target limit for screenshots and transparent assets. Compress Image to 200KB Reach a target file size with multi-pass compression and smart format selection. Compress Image to 100KB Reach a target file size with multi-pass compression and smart format selection. Compress Image to 50KB Reach a target file size with multi-pass compression and smart format selection. Compress Image to 20KB Reach a target file size with multi-pass compression and smart format selection.

Compress PNG to 50KB Online

Use this page when you need to compress png to 50KB online for screenshots, transparent graphics, interface exports, and app assets.

PNG files often stay larger because they preserve detail and transparency. This page helps you target a size limit while keeping a PNG-first workflow unless you deliberately switch to another format.

Reduce PNG for upload limits

Compress PNG files for dashboards, support forms, documentation systems, and asset handoff flows.

Keep PNG when transparency matters

You can keep PNG output by default when pixel detail or transparency still matters after compression.

Try multiple PNG files at once

Batch upload screenshots or design assets and review each target-size result before downloading.

Processing and limitations

Compression may reduce image quality or dimensions. Compare the result before downloading. Animated GIFs retain animation only with GIF output.

File sizes use KiB (1,024 bytes) and MiB. Target sizes are best effort and may not be reached.

W3C PNG Google WebP

Features

100% Client-Side

Compress PNG to 50KB online with repeated quality and resize passes. PNG remains the default output unless you switch formats manually.

Batch Compression

Compress PNG to 50KB online with repeated quality and resize passes. PNG remains the default output unless you switch formats manually.

Adjust Compression Level

Compress PNG to 50KB online with repeated quality and resize passes. PNG remains the default output unless you switch formats manually.

PNG

Compress PNG to 50KB online with repeated quality and resize passes. PNG remains the default output unless you switch formats manually.

How to Compress Images

Frequently Asked Questions

File sizes use KiB (1,024 bytes) and MiB. Target sizes are best effort and may not be reached. Compression may reduce image quality or dimensions. Compare the result before downloading. Animated GIFs retain animation only with GIF output.

PNG compression: quality and transparency

PNG is a lossless file format, but reducing its colour palette before encoding changes pixels. This tool uses colour quantisation below 100% quality. At 100% it uses lossless PNG encoding; resizing still changes pixels. Metadata may be removed. This browser workflow outputs 8-bit still PNG images; APNG animation and 16-bit channel depth are not preserved. If the optional encoder fails to load, browser PNG export may produce a larger file. Compare the preview, dimensions and measured file size before downloading. For a product image with a size limit, compare actual output bytes and inspect colour gradients before publishing. Resize to the pixel dimensions you need; a quality percentage is not an exact file-size target. Keep the original for subsequent edits.

PNG format specification

Last updated: October 11, 2026

References & Resources

Authoritative specifications and references for the file formats this tool works with.

W3C - PNG Specification (Third Edition)

The current W3C standard for PNG, aligned with ISO/IEC 15948.

RFC 2083 - PNG (Portable Network Graphics) Specification

The original 1996 IETF specification that introduced the PNG format.

PNG - Wikipedia

Format structure, color types, and compression internals of PNG.

libpng - Official Reference Library

The canonical PNG reference library and documentation.