Convert Image
Convert images between PNG, JPEG, and WebP formats.
Your image never leaves your device. Processing stays in your browser — no account required.
Tool
Why Dockzio?
Simple tools that respect your time and your privacy.
Free and instant
No subscriptions, no paywalls, no waiting.
No sign-up required
Open a tool and get to work immediately.
Private by design
Processing happens locally in your browser whenever possible.
Beautifully built
Clean, fast interfaces designed for everyday productivity.
About image format conversion
Convert between PNG, JPEG, and WebP without uploading. Preview the result, optionally resize while keeping aspect ratio, then download — all in your browser.
Supported formats
This tool converts PNG, JPEG, WebP, and AVIF (when your browser supports encoding/decoding). HEIC is not supported in-browser. Other formats are rejected clearly — we do not claim support that is not implemented.
Privacy first
Everything is processed locally in your browser. Your images never leave your device and are never uploaded to a Dockzio server.
Quality & resize
JPEG and WebP expose a quality control. PNG is lossless. Optional resize adjusts width and height together before conversion.
Transparency
Converting PNG to JPEG replaces transparent areas with a white background. Prefer PNG or WebP when transparency must be kept.
FAQ
Quick answers to common questions.
Learning Center
Guides related to Convert Image
Short explainers that pair well with this tool — concepts first, then practice.
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