Image Format Converter
Convert images between JPEG, PNG, WebP, GIF, BMP, TIFF, and more — instantly in your browser.
What is Image Format Converter?
Different image formats exist because different use cases have different requirements. JPEG is optimised for photographs — it uses lossy compression that efficiently handles the complex gradients and colours of real-world images. PNG is designed for graphics, logos, and images requiring transparency — it uses lossless compression that preserves every pixel exactly, essential when images contain text, sharp edges, or transparent backgrounds. WebP is Google's modern format that outperforms both JPEG and PNG in most scenarios, offering better compression with equivalent or superior quality. GIF supports animation but is limited to 256 colours, making it poor for photographs. SVG is a vector format that scales infinitely without quality loss, ideal for logos and icons. Choosing the wrong format costs either quality (JPEG for a logo with transparency looks terrible) or file size (PNG for a photograph creates unnecessarily large files). This tool converts between all common image formats with quality control.
How to Use Image Format Converter
- 1
Upload Your Image
Select or drag an image file in any common format: JPEG, PNG, WebP, GIF, BMP, TIFF, or ICO. Multiple files can be converted in batch.
- 2
Choose Output Format
Select the target format. For each format, relevant options appear — quality level for JPEG/WebP, transparency handling for PNG, frame settings for GIF.
- 3
Convert and Download
Click Convert to process the image in your browser. Preview the result and download the converted file immediately.
Use Cases
Converting PNGs to WebP for Web
Modern websites should serve images in WebP format for optimal performance. Convert your existing JPEG and PNG image library to WebP to reduce page weight by 25–35% with no visible quality difference. The batch converter processes entire directories, making it practical to migrate large image libraries.
Preparing Logos and Graphics
A logo exported from design software as a large PNG needs to be in the right format for its use: PNG with transparency for web overlays, JPEG for email signatures (many email clients don't support PNG transparency well), ICO for favicons, and SVG when scalability matters. Convert between formats as needed for each specific context.
Platform-Specific Requirements
Different platforms have specific image format requirements: iOS app icons require PNG, Windows application icons require ICO, email campaigns work best with JPEG, and Google Ads requires specific formats and sizes. Convert images to the correct format for each platform without needing design software.
Features
All Major Format Support
Converts between JPEG, PNG, WebP, GIF, BMP, TIFF, ICO, and SVG — covering every common web, print, and application image format.
Transparency Preservation
Correctly handles alpha channel (transparency) when converting formats — automatically fills transparent areas with white when converting to JPEG (which doesn't support transparency).
Batch Conversion
Convert an entire folder of images to a new format in one operation — useful for migrating image libraries from PNG to WebP or converting camera RAW exports to web-ready JPEG.
Quality Control
Adjustable quality settings for lossy formats let you balance file size against visual quality — with a live file size preview showing the impact of quality adjustments before conversion.
Frequently Asked Questions
WebP is the best choice for most website images in 2024 — better compression than JPEG and PNG, full transparency support, and universal browser compatibility. Use WebP for: photographs, product images, hero images, blog post images. Use PNG for: images with transparency that need pixel-perfect edges (logos on coloured backgrounds), screenshots, and images with text. Use SVG for: logos, icons, and graphics that need to scale to any size. Avoid GIF for anything other than animations — use WebP (which supports animation) for better animated image quality.
JPEG uses lossy compression, so converting a PNG or high-quality source to JPEG does reduce quality — the amount depends on the quality setting (1–100). At quality 85–95, the difference is invisible for photographs at typical viewing sizes. The problem is re-saving JPEG to JPEG repeatedly — each re-save compounds the quality loss. Always keep your original files in their source format (PNG or RAW) and generate JPEG outputs from the originals, never from a previously compressed JPEG.
Yes — PNG supports 8-bit transparency (256 levels of alpha) and is the primary web format for images with transparent backgrounds. JPEG does not support transparency at all — transparent areas become solid white or black when converted to JPEG. WebP supports full alpha transparency at smaller file sizes than PNG. GIF supports only binary transparency (fully transparent or fully opaque, with no partial transparency). If your image has a transparent background, use PNG or WebP, never JPEG.
When converting between lossless formats (PNG to BMP, PNG to TIFF), no quality is lost — the pixel data transfers exactly. When converting from a lossless format to a lossy format (PNG to JPEG, PNG to WebP), quality is determined by the quality setting you choose. Converting from lossy to lossless (JPEG to PNG) does not recover lost quality — it just stores the already-lossy JPEG data in a larger, lossless container without any quality improvement. Converting from one lossy format to another (JPEG to WebP) applies another round of compression, potentially adding more artefacts if quality settings are low.
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