Guides

Practical, step-by-step articles that show you how to get the most out of our free tools — no jargon, no software to install.

Images
5 min read

How to Compress Images Without Losing Quality

Shrink your photos and screenshots to a fraction of their size while keeping them sharp. Learn which formats to use, how much compression is safe, and how to do it free in your browser.

PDF
4 min read

How to Merge and Split PDF Files

Combine several PDFs into one document or pull single pages out of a large file. A simple, free workflow that works on any device with no software to install.

Images
6 min read

How to Convert Images Between Formats (JPG, PNG, WebP)

Not sure whether to use JPG, PNG, or WebP? Learn what each format is best for, how to convert between them, and how to pick the right one for web, print, or sharing.

Images
5 min read

How to Remove the Background From an Image

Turn any photo into a clean cutout with a transparent background. Learn when automatic removal works, how to clean up edges, and where to use your finished image.

Video
5 min read

How to Trim and Convert Videos

Cut unwanted parts out of a video, change its format, or shrink its file size so it is easy to share. Everything happens in your browser — no editing software needed.

Images
4 min read

How to Create a QR Code

Turn a link, a Wi-Fi password, or a short message into a scannable QR code in seconds. Learn what QR codes can hold, how to style them, and how to test them before printing.

Text
5 min read

Word Counter and Text Tools Explained

Word count, character count, reading time, and more — what these numbers mean, why they matter for essays, social posts, and SEO, and how to check them in seconds.

PDF
6 min read

How to Reduce PDF File Size

A PDF that is too big to email or upload is a common headache. Learn why PDFs get so large, how much you can shrink them, and how to compress one free in your browser.

Images
7 min read

Image Formats Explained: JPG vs PNG vs WebP

JPG, PNG, WebP, GIF, AVIF — every image format has a job it does best and jobs it does badly. A plain-English guide to picking the right format for photos, logos, and the web.

Images
5 min read

How to Resize Images for Social Media

Every platform wants a different image size, and a wrongly sized photo gets cropped or blurred. Learn the standard sizes for the major platforms and how to resize in seconds.

Video
6 min read

Video Formats Explained: MP4 vs WebM vs MOV

MP4, WebM, MOV, AVI — video formats are confusing because the file extension hides two different things: the container and the codec. Learn what each one is for.

Math
6 min read

Unit Conversion Explained: Bytes, Time, and Everyday Units

Kilobytes vs kilobits, minutes vs seconds, MB vs MiB — unit conversion trips up almost everyone. Learn the systems behind the numbers and how to convert without mistakes.

PDF
5 min read

PDF vs Word: When to Use Which Format

PDF and Word both carry documents, but they are built for opposite jobs. Learn when each format wins, when to convert between them, and how to do it free in your browser.

Video
5 min read

How to Compress a Video

A video that is too large to send or upload is usually fixable in a minute. Learn what makes video files big, how much you can shrink them, and how to do it in your browser.

Images
6 min read

Image Resolution and DPI Explained

Pixels, DPI, PPI, megapixels — resolution numbers are quoted everywhere and understood almost nowhere. Learn what they actually mean for screens, prints, and file sizes.

Convert
6 min read

How to Convert Files Online

Images, videos, audio, documents, spreadsheets — almost any file can be converted in a browser without installing software. Learn what converts well, what to watch out for, and how to do it safely.

Images
5 min read

How to Make a Transparent PNG

A transparent PNG lets a logo or cutout sit cleanly on any background. Learn how transparency works, how to remove a background, and how to create a transparent image from scratch.

Data
6 min read

How to Convert CSV to JSON (and Back)

CSV is how spreadsheets store data; JSON is how apps and APIs store it. Learn how the two formats map to each other, what breaks in conversion, and how to convert them free in your browser.