PNG is lossless (or near-lossless depending on how we re-encode) and excellent at flat color, type, and alpha. It is terrible at Camera noise — a PNG of a 12 MP photo can dwarf the JPEG of the same scene. If you photographed a product, use JPEG (or photographic WebP). If you captured a settings panel, stay here.
WebP can be smaller for both photos and graphics when every browser you care about can decode it. Email clients and some printers still cannot. Default to PNG for designer handoff; WebP for a modern site pipeline.
Convert-first is honesty, not a dodge. HEIC → PNG or JPEG, then encode. GIF → a still PNG/JPEG (animation is out of scope). BMP/TIFF → a web raster. AVIF → PNG/JPEG if the compressor picker cannot read it. SVG is vectors: scale in Figma, or rasterize at the size you need, then encode the bitmap. We do not minify SVG path data like a photo.
Image Compression Guide
PNG and WebP Compressor — When JPEG Is the Wrong Tool
UI, logos, and screenshots want PNG or WebP. Photographs as PNG are usually a mistake. Convert odd containers before the slider.
Native: PNG & WebP (and JPG on other pages). Convert Apple HEIC, TIFF, GIF, AVIF, or BMP first; SVG is vector — scale or rasterize, then compress.
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Written by Safaat Rahman Siham, Founder & Developer at Convertify4u. Contact us.
Native rasters versus containers we will not pretend to “photo-crush”
Native: PNG and WebP (JPEG lives on the sibling spoke). Alpha: keep PNG/WebP; JPEG will fill holes with a matte. Screenshots: PNG, quality high enough that type stays crisp — the usual fail is exporting a screenshot as JPEG “to make it smaller” and watching gray text smear. Icons: if the PNG is 2000px for a 32px favicon, resize first; encoding unused pixels is wasted. Indexed-color logos sometimes shrink more by going back to a 256-color export from the design app than by photo-style compression. After encode, if the file is still huge, you still have too many pixels or you PNG’d a photograph.
How it works
- 1
Choose a raster the slider can read
PNG or WebP in. Apple HEIC, rasterized SVG, a GIF frame, AVIF, BMP, or TIFF: convert first, then drop the result.
- 2
Encode for the job
UI and logos: protect edges. If you actually have a photo in a PNG wrapper, consider JPEG instead after flattening.
- 3
Download and verify alpha
Checkerboard should survive if you started with holes. Pair with JPG to PNG only when you needed a lossless-ish handoff from a JPEG — data already lost stays lost.
Use cases
UI screenshots and docs
Settings panels, error dialogs, code snippets as images. JPEG would ring the glyphs.
WebP site delivery
Modern heroes and cards already in WebP, tuned in-tab before CDN upload.
Apple stills that must stay lossless-ish
HEIC to PNG, then a careful encode if you refuse JPEG artifacts.
Legacy containers
BMP from old Windows, TIFF from a scanner, a GIF frame, an AVIF experiment — convert, then encode.
Problems we solve
Picker says unsupported
Browsers like PNG/WebP/JPEG. Convert the odd container. Do not expect SVG path minification here.
PNG photographs that will not get small
That is the format. Switch to JPEG for noisy photos. Keep PNG for graphics.
Brand assets on a random host
Local WASM. Unreleased identity stills stay on the laptop.
Image tool ecosystem
Pair our image compressor with Convertify4u converters when you need to normalize HEIC assets or clean a backdrop before you compress image exports.
Related guides
Trust, speed & privacy
Local PNG/WebP encode
Nothing stored remotely on this Instant path.
Honest convert-first list
We name Apple HEIC, TIFF scans, BMP leftovers, GIF frames, AVIF, and SVG instead of fake “all formats” natively.
Edge-aware advice
Logos and type fail differently than skin. We say so.