Convert Images
Convert Images
Convert between JPG, PNG, and WebP formats.
When to Use Each Format
- WEBP: best size/quality for most photos on web.
- JPG: broad compatibility, adjustable quality.
- PNG: transparency, line art, UI elements.
Color Profiles & Compatibility
- Export in sRGB for web; other profiles can shift colors.
- Transparent backgrounds are supported in PNG and WEBP (not JPG).
- Avoid unnecessary conversions—each lossy step may degrade quality.
Batch Tips
- Keep filenames predictable with hyphens and dimensions.
- Check output sizes; WEBP often halves JPG with similar quality.
- Retain the original file in case you need a different format later.
Common Questions
- Is processing local? Most edits run in your browser; if a server is needed, the page will note it.
- Do you keep my images? No—downloads save to your device and previews clear on tab close.
- Which format should I pick? Photos → WEBP/JPG; transparency/line art → PNG; icons/logos → PNG/WEBP.
Updated Oct 01, 2025
Choosing Output Wisely
- If you need transparency, choose PNG or WEBP (not JPG).
- For photo galleries, WEBP often halves size vs. JPG at similar quality.
- For icons/line art, PNG keeps edges ultra‑clean.
Color & Gamma Notes
- Stick with sRGB for web to avoid browser color shifts.
- Avoid converting between lossy formats multiple times—each pass can degrade detail.
- If a file looks darker/lighter after conversion, re‑export from the original.
Tip: Batch convert sets with consistent naming, e.g., product-blue-1200x800.webp.
Updated Oct 01, 2025
Solving format compatibility issues
Conversion changes file types so images work across platforms and apps.
Choose formats based on transparency and performance needs.
- JPG for photos
- PNG for graphics
- WebP for web delivery
Page-specific details
Conversion is the right choice when a platform rejects your upload or when you want a format better suited to the destination. Be careful with transparency: JPG cannot preserve transparent backgrounds.
If you’re converting for web use, WebP often provides smaller files with good quality. If you’re converting for maximum compatibility, JPG and PNG remain the safest defaults.
Conversion choices by destination
Conversion is not only about compatibility—it’s also about intent. A format can be “accepted” but still be a bad fit for the content (example: line art saved as JPG).
If your image needs transparency (logos, overlays), choose a format that supports an alpha channel. If you need the smallest file for web delivery, WebP is often a strong option.
If you are sending to someone who may use older software, JPG and PNG are the most universally supported.
Quick checklist
- Don’t convert transparent graphics to JPG
- Prefer PNG for crisp text and UI screenshots
- Prefer WebP for performance-focused web publishing
Examples
| Content type | Suggested format | Reason |
|---|---|---|
| Photo | JPG/WebP | Efficient for gradients and color variation |
| Logo with transparency | PNG/WebP | Preserves alpha channel |
| Screenshot with text | PNG | Sharp edges and readability |
Conversion pitfalls that frustrate people
Format conversion is simple, but it has a few gotchas. The most common one is transparency loss—JPG cannot store an alpha channel, so transparent areas become a solid background.
Choose based on what the image contains
- For photos: pick JPG or WebP to keep files lightweight.
- For screenshots and text: pick PNG to preserve crisp edges.
- For modern websites: try WebP first, then fall back to JPG/PNG if needed.
After converting, open the exported file once to confirm the background, colors, and edges look correct in your target app.
Transparency and backgrounds, explained plainly
Here’s the simplest rule: if you need see-through pixels, don’t use JPG. JPG replaces transparency with a solid color, which is why logos suddenly get a box behind them.
For modern websites, WebP is a strong choice when supported. For maximum “works everywhere” compatibility, PNG (graphics) and JPG (photos) are still the safest defaults.
Conversion sanity checks
- Test the exported file on a dark background and a light background
- Verify that thin lines and small text stayed sharp
- Confirm the platform accepts the output format before batch converting
When converting increases file size
Conversion is not always a size win. Some images—especially screenshots—can become larger when converted to a photo-optimized format. That’s normal because different formats compress different kinds of content better.
If your goal is size reduction, compare two exports and pick the one that stays sharp at the smallest size. There’s no universal “best” format for every image type.
Quick guidance
- Screenshots with text often prefer PNG (or carefully chosen WebP).
- Photos usually shrink well as JPG/WebP.
- Logos need transparency support (PNG/WebP), not JPG.
Format choice by “feature needs”
Instead of asking “which format is best,” ask what the image must support: transparency, sharp text, or smallest download. That feature-first approach prevents the classic mistakes like losing a transparent background or making a screenshot unreadable.
Feature checklist
- Needs transparency: PNG or WebP.
- Mainly a photo: JPG or WebP.
- Lots of text/lines: PNG (or carefully tuned WebP).
After converting, always preview against the background where it will be used (light and dark) so you catch edge halos and background fills early.
Photographers: format picks for delivery
For photo delivery, JPG is widely compatible and predictable, while WebP can be great for web portfolios when your platform supports it. If you’re sending graphics overlays or need transparency (logos, stamps), use PNG/WebP—JPG will flatten transparency into a solid fill.
- Client download: JPG for photos, PNG for branded graphics.
- Web portfolio: WebP when accepted; keep JPG fallback for older systems.
Compatibility strategy for mixed platforms
If you publish across multiple destinations, keep one “universal” copy (JPG for photos, PNG for graphics) and one “web-optimized” copy (often WebP). That split keeps you fast online while still being ready for older upload systems.
Conversion sanity checks before you share
Before converting a whole batch, convert one sample image and verify it in the destination app. Some systems accept the upload but change it later.
Quick conversion checks
- Transparency: confirm backgrounds stay transparent for logos and overlays.
- Text edges: screenshots should keep crisp letter shapes.
- Color: compare against the original on the platform where it will be published.
If the destination is mixed (web + email + portals), keep a “universal” JPG/PNG copy alongside a “web-optimized” version.
Compatibility checklist for uploads
Conversion issues usually show up as rejected uploads, lost transparency, or unexpected file size changes. A one-file test prevents batch mistakes.
Before converting a batch
- Convert one representative file and upload it to your destination.
- Confirm backgrounds behave correctly (transparent vs solid fill).
- Check sharpness of text/lines if the image is a screenshot or graphic.
If the destination is unknown, keep a compatible “backup” copy (JPG for photos, PNG for graphics) even if you prefer WebP for the web.
Related: If you’re comparing tools, see the full guide: Edit Image Online.
| Converting from | Converting to | What changes | Best use case |
|---|---|---|---|
| JPEG | WebP | Smaller file, similar quality | Web images, page performance |
| PNG | WebP lossless | Smaller file, no quality loss | Web graphics, logos |
| PNG | JPEG | Transparency lost, smaller file | Photos without transparency |
| JPEG | PNG | Larger file, lossless quality | Archiving, editing masters |
| Any | WebP | Best web compression | Most web publishing tasks |
Frequently Asked Questions
What image formats can I convert between?
This tool converts between JPEG (JPG), PNG, and WebP formats. Choose your source file and select the output format. WebP is recommended for web use — it typically produces smaller files than JPEG or PNG at equivalent quality. Use PNG when you need lossless quality or transparency. Use JPEG for photos where file size matters more than pixel-perfect accuracy.
Will converting to WebP reduce quality?
WebP lossy conversion will reduce some quality, similar to saving as JPEG. At quality settings of 75–85%, the difference is typically invisible. WebP lossless conversion preserves all image data with no quality loss. If you are converting from PNG to WebP for a web page, lossy WebP at 80% will usually produce a significantly smaller file with no visible quality difference.
Can I convert PNG to JPG without losing transparency?
JPEG does not support transparency — transparent areas will be filled with a background color (usually white) when converting PNG to JPEG. If your image has transparency that needs to be preserved, convert to WebP or keep it as PNG. This converter will show you the result before you download so you can check how transparency was handled.
Is there a file size limit for conversion?
There is no strict server-side limit because processing happens in your browser. Practical limits depend on your device memory. Most images under 20 MB convert quickly. Very large files (50+ MB) may be slow on older devices. For batch conversion of many files, process them in groups.
Why should I convert images to WebP?
WebP typically produces 25–35% smaller files than JPEG at equivalent visual quality, and 20–30% smaller than PNG for lossless content. Smaller files mean faster page loads, better Core Web Vitals scores, and lower bandwidth costs. All major browsers now support WebP. The main reason to stick with JPEG or PNG is compatibility with older software, print workflows, or systems that don't yet accept WebP.