ConvertFlow converts images, compresses files, and transforms text — all in your browser. No files are uploaded to any server. Your data stays private and secure.
Supported formats: PNG, JPEG, WebP, AVIF, BMP, GIF. Convert between any format instantly.
Batch processing: Convert, compress, or resize multiple files at once. Download individually or all at once.
Convert images between PNG, JPG, WebP, AVIF, and BMP formats instantly in your browser. Batch process multiple files, adjust quality, and resize — all without uploading anything to a server.
Each image format has strengths: JPEG offers excellent compression for photos but no transparency. PNG supports transparency and is lossless but creates larger files. WebP provides superior compression with transparency support. AVIF is the newest format with the best compression ratios but limited browser support. BMP is uncompressed and rarely used online.
Use JPEG for photographs and complex images with many colors. Use PNG for graphics with text, logos, screenshots, or when transparency is needed. Use WebP as a modern alternative that is smaller than both JPEG and PNG. Use AVIF when cutting-edge compression is needed and browser support is not a concern.
Unlike most online converters that upload your files to their servers, this tool processes everything locally in your browser using JavaScript. Your images never leave your device. This is especially important for sensitive documents, personal photos, or business materials.
When converting between formats, quality depends on the source and target format. Converting from lossy (JPEG) to lossless (PNG) preserves current quality but does not restore lost detail. Converting from lossless to lossy always involves some quality reduction. Choose quality settings between 70-85% for the best balance of size and appearance.
Yes, completely free with no signup required. This tool runs entirely in your browser and will always be free to use.
Our calculator uses standard formulas and industry-accepted methods for high accuracy. Results are suitable for planning and estimation. For critical applications, always verify with a professional.
Yes. All calculations happen in your browser using JavaScript. No data is ever sent to any server. Your inputs and results never leave your device, ensuring complete privacy.
Yes. This tool is fully responsive and works on smartphones, tablets, and desktop computers. No app download is needed — just use your web browser.
We regularly update our tools to ensure accuracy and improve the user experience based on feedback. The underlying formulas are based on established standards and are verified for correctness.