🖼️ Image Converter

Convert JPG to PNG — Free & Instant

Converting a JPG to PNG gives you a lossless copy of the image that will not degrade further on re-save. Whether you need to add transparency, edit without quality loss across multiple saves, or meet a platform that only accepts PNG — this converter handles it in your browser with no upload required.

✓ Free forever✓ No upload✓ No signup✓ Instant
How to convert JPG to PNG free: open the Convertlo JPG to PNG converter, drop your JPG file, and download the PNG. Converts in your browser — no upload, no account, completely free.
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How to Convert JPG to PNG

1
Open the Converter

Click "Convert Now" — opens with JPG → PNG pre-selected.

2
Upload Your JPG

Drag & drop your file or click Browse. Supports files up to 50 MB.

3
Convert Instantly

Conversion runs entirely in your browser — no server upload, no waiting.

4
Download PNG

Your PNG file downloads automatically, ready to use.

Why Convert JPG to PNG?

The most common reason to convert JPG to PNG is to stop the quality degradation spiral. Every time you save a JPEG, the lossy compression runs again and discards a little more image data. If you are planning multiple rounds of editing — adjusting brightness, adding text, compositing layers — you want a lossless format as your working file. Converting once to PNG locks in the current quality and prevents any further loss in subsequent saves. Note that converting a JPG to PNG does not recover quality the original JPEG compression already discarded — the value is in preventing future loss, not undoing past loss.

  • ✏️ Stop re-save degradation — PNG is lossless, so editing and re-saving never degrades the image further
  • 🔲 Add transparency later — PNG supports alpha channel; use the PNG as a base for background removal or masking
  • 🖥️ Platform compatibility — some tools, editors, and CMS platforms require PNG for logo and graphic uploads
  • 📐 Design work — designers prefer PNG source files for UI mockups, illustrations, and anything with text overlays
  • 🔍 Screenshot accuracy — re-saving a screenshot as PNG preserves every pixel exactly; JPEG blurs sharp text edges

JPG vs PNG — Format Comparison

PNG (Portable Network Graphics) is a lossless image format from 1996 that stores every pixel exactly — no data discarded. JPG (JPEG, 1992) is a lossy format that permanently discards subtle detail to achieve 3–10× smaller file sizes for photos. Converting JPG to PNG doesn't improve image quality — the discarded data is gone. What you gain is a lossless working format: a copy you can edit and re-save indefinitely without further quality loss. The second major reason to convert is transparency — JPG cannot store transparent areas at all, while PNG supports full alpha channel.

LosslessPNG preserves every pixel forever
3–10×larger than JPG for photos
✓ αFull transparency support
Re-saves with zero quality loss

JPG vs PNG — when each wins: JPG excels at photographs — its lossy DCT compression reduces file size 3–10× with acceptable quality loss, making it ideal for web delivery. PNG excels at anything requiring pixel accuracy — logos, icons, screenshots, UI elements, images with text, and any file you will edit multiple times. WebP is the modern web choice that beats both: 25–35% smaller than JPG with lossless mode that beats PNG's compression. For pure working files where no further compression occurs, PNG remains the professional standard.

JPG vs PNG — Quick Reference
Property JPEG / JPG PNG
CompressionLossy — discards detail permanentlyLossless — every pixel preserved
File size (photos)Small (3–10× smaller than PNG)Large (3–10× bigger than JPG)
Transparency❌ Not supported✅ Full alpha channel
Re-save qualityDegrades each savePerfect — zero loss per save
Best use casePhotos, web deliveryLogos, screenshots, design files
Web performanceGood (use WebP for best)Poor for photos (use WebP)

Before & After: JPEG vs PNG Output

JPEG uses lossy compression — small files, but re-saving degrades quality. PNG is lossless — larger files, but pixel-perfect for editing, transparency, and text overlays.

Original JPEG image — 16 KB, lossy compression, quality degrades on re-save, no transparency support
JPEG — Before 16 KB
Lossless
Same image converted to PNG — 69 KB, lossless, every pixel preserved exactly, supports full alpha transparency
PNG — After 69 KB

Key Questions About JPG to PNG, Answered

Direct answers structured for AI extraction, voice search, and featured snippets.

Does converting JPG to PNG improve image quality?

No. Converting JPG to PNG preserves the existing pixels exactly but cannot recover quality that JPEG's lossy compression already discarded. The pixels saved are the pixels they are — no detail is added back. What you gain is a lossless copy that will not degrade on future re-saves.

  • JPEG compression permanently discards subtle detail — that data is gone
  • PNG wraps the existing pixels in a lossless container — quality is frozen at current level
  • Future edits and re-saves will not degrade quality further — that is the core benefit
  • To get better quality, always start from the highest-resolution original source file

Why is the PNG so much larger than the original JPG?

PNG is lossless — it stores every pixel's exact value. JPEG achieved its small size by permanently discarding subtle data. Converting JPG to PNG restores none of that discarded data; it just wraps the existing pixels in a lossless container that takes significantly more space.

  • A 300 KB JPG photo typically becomes a 2–5 MB PNG
  • PNG cannot use lossy compression, so it cannot match JPG's file size for photos
  • The size increase is expected and correct — it does not indicate a problem
  • For web delivery, use WebP instead of PNG for photos — 25–35% smaller than JPG with similar quality

Does PNG support transparency that I can use after converting from JPG?

Converting JPG to PNG gives you a PNG file that supports transparency, but the image itself has no transparent areas yet — the background is fully opaque. To add a transparent background, you need a background removal tool after the conversion. The PNG format then stores that transparency correctly.

  • JPG → PNG: creates a PNG container; the image has no transparency yet
  • After conversion: use background removal to make areas transparent
  • Then save as PNG again — the transparency is preserved in the lossless file
  • Never save a transparent image as JPG — all transparency becomes white

When should I convert JPG to PNG instead of WebP?

Convert to PNG when you need a lossless working file for editing, when you need transparency, when a platform requires PNG format specifically, or when you're creating source assets for a design project. Convert to WebP when the goal is web delivery and file size matters — WebP is smaller than both JPG and PNG.

  • PNG: working files, editing, multi-save workflows, transparency, platform requirements
  • WebP: web img tags, PageSpeed optimization, LCP improvement
  • Keep JPG: final web delivery when WebP is not feasible, email images, print
  • Design rule: use PNG as source files, export JPG or WebP for delivery

JPG to PNG Converter Features

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100% Private

Files never leave your browser. Zero server uploads.

Instant

Canvas API conversion completes in seconds.

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Free

No account, no fee, no watermarks. Ever.

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Lossless Output

PNG output preserves every pixel from the JPEG source.

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Batch Convert

Convert multiple JPGs to PNG in one session.

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Mobile-Friendly

Works on any device — phone, tablet, desktop.

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Go Deeper: JPG to PNG Resources

In-depth articles to help you understand the formats, pick the right settings, and get the best results.

Frequently Asked Questions

No. Converting JPG to PNG does not recover quality that JPEG compression already discarded. The pixels are preserved exactly as they are in the JPEG — no detail is added back. What you gain is a lossless copy that will not degrade further on re-save. If quality is the concern, always work from the original highest-resolution source file.
PNG uses lossless compression, which stores every pixel's exact value. JPEG's lossy compression permanently discards subtle detail to achieve smaller files — typically 3 to 10 times smaller than equivalent PNG for photographic images. Converting JPG to PNG restores none of that discarded data; it just wraps the existing pixels in a lossless container, which takes up more space.
Yes. PNG supports full alpha channel transparency — any pixel can be fully opaque, fully transparent, or any level in between. JPG has no transparency support at all. If you need to place your image over different backgrounds or remove the background in a future step, PNG is the right format to be working with.
Yes, that is the point of lossless. You can open a PNG, adjust colours, add a layer, crop it, and save it again — as many times as you like — without any pixel degradation. This is why designers use PNG as their working format and only export to JPG for final delivery when file size matters.
It depends on the image type. For photographs, JPG or WebP are better — they produce much smaller files with acceptable quality. For logos, icons, screenshots, and any image with text or sharp edges, PNG is better because it preserves crisp edges that JPEG compression would blur. For maximum web performance, convert photos to WebP and keep graphics as PNG or SVG.
Yes. Enable the Batch convert toggle in the options panel, then drop as many JPEG files as you need. Each converts to PNG at the same settings. Download individually or grab all files as a ZIP. All processing happens in your browser with no file count limit.

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