Lena Fischer is the independent developer behind pixconv, a set of free image-conversion tools that run entirely in your browser — your files are processed on your own device and never uploaded to a server. She writes these guides by running every step herself and checking the results in pixconv's own converter before publishing. Questions or corrections: contact@pixconv.io.
Lena Fischer
Articles by Lena Fischer
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HEIF vs. HEIC: What's the Difference?
July 17, 2026
HEIF vs. HEIC explained: what each term means, how HEIC relates to HEIF, why iPhones default to it, and how to convert either format to JPG.
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What Is a JFIF File? (And Why Does Windows Keep Saving Photos As One?)
July 17, 2026
JFIF explained: what a .jfif file actually is, how it relates to JPG and JPEG, why Windows creates them, and how to convert or stop it happening.
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How to Convert HEIC to JPG on Mac (5 Free Methods)
May 28, 2026
Step-by-step guide to converting HEIC images to JPG on macOS using Preview, the Finder Convert Image action, Photos, sips in Terminal, and pixconv.io. No extra software needed.
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AVIF vs WebP: Which Image Format Should You Use?
April 23, 2026
A technical comparison of AVIF and WebP image formats: compression efficiency, browser support, encoding speed, and when to use each one.
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HEIC vs. JPG: Which Format Should You Use?
April 16, 2026
Compare HEIC and JPG image formats — file size, quality, compatibility, and when to use each. Learn when to convert HEIC to JPG and when to keep it.
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How to Open HEIC Files on Windows (5 Methods)
April 9, 2026
HEIC files from iPhone not opening on Windows? Here are 5 ways to view and convert HEIC images on Windows 10 and Windows 11 — including free options.
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How to Batch Convert WebP to PNG (Convert Multiple Files at Once)
April 2, 2026
Convert dozens of WebP images to PNG in one go. Step-by-step guide for bulk conversion on Windows, Mac, and from the command line.
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How to Convert WebP to PNG on Windows (4 Free Methods)
March 26, 2026
Convert WebP images to PNG on Windows using Paint, Photos, the browser, or free tools. Step-by-step guide — no software purchase required.
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How to Convert WebP to PNG on Mac (4 Free Methods)
March 19, 2026
Step-by-step guide to converting WebP images to PNG on macOS using Preview, Quick Look, Automator, and pixconv.io. No extra software needed.
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How to Change WebP to PNG (Quick Guide)
March 12, 2026
Three quick ways to change a WebP image to PNG on Windows, Mac, or any device. Free, no software install needed.
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How to Turn WebP Into PNG (3 Easy Ways)
March 4, 2026
Learn how to turn any WebP image into a PNG file in seconds. Three free methods — browser, Mac, and Windows — no software needed.
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How to Convert WebP to PNG (5 Free Methods)
February 19, 2026
Step-by-step guide to convert WebP images to PNG on Windows, Mac, iPhone, and online. All methods are free and take under a minute.
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WebP vs PNG: Which Format Should You Use?
February 12, 2026
A practical comparison of WebP and PNG. Learn when each format excels, how they differ in quality, file size, and compatibility, and which to choose for your project.
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What Is WebP? The Complete Guide to Google's Image Format
February 3, 2026
WebP is Google's image format that offers smaller file sizes than JPEG and PNG. Learn what WebP is, how it works, its pros and cons, and when to use it.