Convert images between JPG, PNG and WebP entirely in your browser, with quality control for JPG and WebP and transparency preserved in PNG and WebP.
Part of our Images & Design collection — Explore more Images & Design tools · See also: QR Code Generator, Image Editor: Compress, Resize, Crop & Border.
Quick answer: Image Format Converter: JPG, PNG & WebP — JPG, PNG & WebP Free, no signup, runs in your browser. See below for the interactive tool, 4-step guide and FAQs.
Quality: 92%
Paste SVG markup and export a PNG at any scale. Everything runs locally in your browser — scripts are blocked and nothing is uploaded.
Scale: 2x
Used when SVG has no width/height
Deep dives from the Tool4SaaS blog — tested workflows, print sizes and fixes.
Reviewed by the Tool4SaaS Editorial Team — In-house reviewers who build and test every tool locally for accuracy across current Chrome, Edge, Firefox, and Safari. Last updated: . See our authors, methodology or contact us.
JPG suits photographs, PNG preserves transparency, and WebP shrinks web pages while keeping transparency, all entirely offline. Files up to 10MB convert one at a time locally for speed. For example a 2.1MB PNG logo drops near 410KB as WebP at 85 percent with identical dimensions.
PNG exports losslessly without sliders, while JPG and WebP use 1 to 100 quality controls locally. Try 85 percent for photographs, 90 percent for text-heavy screenshots, and 75 percent for drafts. A 3.4MB photo at 85 percent often lands near 620KB. Keep PNG or WebP when transparency must survive.
No. Conversion draws through canvas locally and never leaves your device, with one file per run keeping memory predictable. Logo.png at 2.1MB becomes WebP near 410KB entirely in-tab. Closing the tab discards pixels, ideal for client assets and unreleased product shots requiring confidentiality.
JPG has no alpha channel, so translucent areas fill with white during conversion by design. Reconvert the same logo.png to WebP or PNG to retain see-through regions for overlays and stickers. Always check the checkerboard preview before downloading JPG for marketplace listings that demand clean cutouts.
Photographic PNGs waste bytes because lossless encoding cannot exploit perceptual redundancies efficiently. Convert 4MB camera PNGs to JPG at 80 percent near 700KB for blogs, or WebP at 85 percent near 550KB for modern sites. Keep original PNGs archived separately while serving lighter derivatives to visitors across gray desktop themes and mobile networks.
Change single images between JPG, PNG and WebP entirely in your browser without upload for privacy and speed. Choose JPG for photographs, PNG when transparent cutouts matter, and WebP for lightweight websites that still need transparency. Example 1: convert logo.png at 2.1MB to WebP near 410KB at 85 percent for product pages. Example 2: convert photo.jpg at 3.4MB to WebP near 480KB for portfolios viewed on gray desktop monitors and phones. Files up to 10MB process one at a time, keeping renders fast while preserving width and height. Bloggers accelerate pages, sellers satisfy marketplace validators, and students submit portal-compliant assignments with minimal friction every day. Classroom demonstrations compare same-image exports side by side to internalize efficiency tradeoffs quickly and confidently while comparing load times on mobile networks with throttled profiles that simulate rural connectivity and budget devices.
JPG and WebP quality sliders from 1 to 100 balance bytes against visible artifacts locally with instant estimates. Table — Source | Setting | Output: logo.png 2.1MB | WebP 85 percent | 410KB transparent; photo.jpg 3.4MB | JPG 85 percent | 620KB vivid; screenshot 2.5MB | PNG lossless | 1.1MB crisp; portrait 4.2MB | WebP 80 percent | 700KB smooth; hero 5.8MB | WebP 75 percent | 520KB compact. Try 85 percent for photos, 90 percent for text, and 75 percent for drafts while inspecting gradients at full zoom. PNG remains lossless without sliders, preserving sharp glyphs and translucent overlays perfectly. Keep PNG or WebP for see-through needs because JPG fills transparency with white by specification. Teachers project quality ladders showing banding thresholds across projectors spanning several meters for clarity while recording quality preferences for team style guides that standardize export presets across designers and content editors.
Single-file conversion keeps memory predictable but excludes batch queues, resizing and cropping controls found elsewhere. Edge case: 8000-pixel panoramas near 10MB can strain budget phones during WebP encoding, requiring closed tabs and patience while canvas processes tiles sequentially without crashing the browser tab unexpectedly. Limitation: output retains source dimensions only, without DPI tags or metadata preservation for print workflows. For exact pixel targets before conversion, resize first with our tool at /image-compressor. For lighter files after conversion, reduce bytes further at /image-compressor, free offline with nothing uploaded. Archivists retain masters while distributing derivatives optimized for each channel and audience across seasons while tracking gray interface themes, export presets and client feedback in shared documentation and versioned preset files that preserve quality choices across projects and seasons.