PNG, JPG, WebP or HEIC? Convert Images the Smart Way
Every image format has one job it's best at. Learn which to use where — and convert between all of them privately in your browser.
The form rejects your iPhone photo. The logo looks fuzzy on the website. The screenshot with crisp text turned to mush after "saving as JPG." Format problems all trace to one root: every image format was engineered for a specific job, and files constantly end up doing someone else's.
Learn the four jobs and you'll never wonder which way to convert again.
The four formats that matter (and their one job each)
JPG — photographs. Millions of colours, smooth gradients, small files through lossy compression. Terrible at sharp edges and text, which grow fuzzy artifacts. No transparency.
PNG — graphics, screenshots, transparency. Lossless: text and line art stay razor sharp, and transparent backgrounds survive. The cost is size — a photo saved as PNG balloons to several times its JPG weight for no visible gain.
WebP — the modern web. 25–35% smaller than JPG at the same quality *and* supports transparency. The default choice for websites in 2026; its only weakness is the occasional legacy system that refuses it.
HEIC — iPhone storage. Apple's efficient camera format, brilliant on the phone, rejected by half the portals and Windows tools on Earth. HEIC's job ends the moment the photo leaves your phone.
The conversions you'll actually perform
- [HEIC to JPG](/heic-to-jpg) — the #1 real-world conversion: makes iPhone photos universally accepted. Batch-convert the vacation folder in one pass.
- [PNG to JPG](/png-to-jpg) — when a graphic has no transparency and the PNG weight isn't buying anything. Screenshot archives shrink dramatically.
- [JPG to PNG](/jpg-to-png) — needed when a tool *demands* PNG; note it can't un-bake JPG's compression, it just changes the container.
- [JPG to WebP](/jpg-to-webp) — the website speed upgrade; same pictures, quarter lighter pages.
- [WebP to JPG](/webp-to-jpg) — for the downloaded WebP that your editor, marketplace or printer refuses to open.
- [Image Converter](/image-converter) — the general hub when your source or target is anything else, with quality control and batch support.
All of it runs locally — a folder of personal photos converts without a single byte leaving your machine.
Quality: what conversion can and cannot do
One-way street, worth internalizing: converting *into* a lossy format (JPG, lossy WebP) discards data permanently; converting *out* of it never restores what's gone. Practical rules:
- Keep originals; convert copies.
- Convert from the source, not from a previous conversion — each lossy generation compounds.
- When converting to JPG/WebP, 80–90% quality is the sweet spot; combine with Compress Image if a size limit is also in play.
And a special case that trips everyone: a logo that must scale cleanly wants to be a vector — PNG to SVG traces simple graphics into infinitely scalable form, something no raster conversion achieves.
Batch conversions and pipelines
Format changes rarely travel alone. The common chains, each a two-step in the browser: HEIC folder → JPG → JPG to PDF for the visa application; screenshots → PNG → Resize Image for documentation; product shots → WebP + compression for the store. Every converter above accepts batches and returns an organized ZIP.
Frequently Asked Questions
Which format should I upload to government portals?
JPG, almost universally — it's the format every legacy system understands. Convert HEIC first, and mind the size limit with target-size compression.
Why did my transparent logo get a white background?
It was converted to JPG, which has no transparency — the transparent areas were filled. Reconvert the original to PNG or WebP, both of which preserve it.
Is WebP safe to use everywhere now?
On the web, yes — every modern browser supports it. Desktop software and print shops are the holdouts; keep a JPG/PNG copy for those.
Does converting between formats resize the image?
No — dimensions stay identical; only encoding changes. Resizing is its own deliberate step with Resize Image.
Next mystery rejection, skip the guessing: check the format, convert with the Image Converter, upload — the full lineup lives at Image Tools.
