How to Compress Images Without Losing Quality (2026 Guide)
Learn the best techniques to reduce image file size while preserving visual quality for web and mobile.
Dec 1, 2025 7 min read
PixlTools Blog
Image Optimization Blog
Practical guides on image compression, format conversion, resizing, and web performance — written by developers and designers who work with images every day.
About This Blog
The PixlTools blog covers everything you need to know about working with images on the web and beyond. Whether you're a developer trying to improve your Google PageSpeed score, a photographer preparing images for a client gallery, or a social media manager making sure your posts look sharp on every platform — you'll find practical, actionable advice here. Every article is tested and written by people who use these tools daily.
Topics covered include: image compression techniques, choosing between JPG vs PNG vs WebP, understanding DPI and resolution for print and screen, resizing images for social media platforms, Core Web Vitals optimisation, background removal workflows, AI upscaling, and much more. All guides are updated regularly to keep pace with changing platform requirements and new tools.
CompressionFormatsOptimizationSocial MediaResizeBackground RemovalUpscalingWatermarkConversionAdvancedGuides
Best Image Formats for Websites in 2026: PNG vs JPG vs WebP
A comprehensive comparison of image formats to help you choose the right one for your website.
Dec 5, 2025 9 min read
How to Reduce Image Size for Faster Websites (2026 Guide)
Step-by-step guide to optimize images and dramatically improve your website's loading speed.
Dec 10, 2025 8 min read
Best Image Size for Blogs and Social Media in 2026
The ultimate guide to image dimensions for every platform — WordPress, Instagram, Twitter, Facebook, and more.
Dec 15, 2025 6 min read
How to Resize Images for Web – Complete Guide (2026)
Everything you need to know about resizing images for the web, including responsive images and modern techniques.
Dec 20, 2025 10 min read
How to Remove Image Background for Free Online
A step-by-step guide to removing backgrounds from images automatically, including tips for getting the cleanest results on complex subjects.
Jan 5, 2026 7 min read
How to Upscale Images Without Losing Quality
Learn how AI and algorithm-based upscaling works, and when to use each method to get the sharpest results at higher resolutions.
Jan 12, 2026 8 min read
How to Add a Watermark to Images Online Free
Protect your photos and brand your work with custom text watermarks. Everything you need to know about watermarking images effectively.
Jan 20, 2026 6 min read
WEBP vs JPG vs PNG: Which Image Format is Best for Your Website?
An in-depth comparison of the three most common web image formats to help you make the right choice for every use case.
Jan 28, 2026 9 min read
Social Media Image Size Guide 2026: Instagram, YouTube, Facebook & More
The complete, up-to-date guide to image dimensions for every major social platform in 2026 — with tips to avoid blurry uploads.
Feb 5, 2026 7 min read
How to Convert PDF to JPG Online Free – Complete Guide
Learn how to extract pages from a PDF as images — and when to convert the other way, from images to PDF — using free online tools.
Feb 14, 2026 6 min read
How to Reduce Photo Size in KB – Fast & Free
Need to reduce a photo to under 200KB, 100KB, or 50KB? Here's exactly how to do it online for free.
Feb 20, 2026 8 min read
How to Convert JPG to PDF Online – Free & Instant
Convert any JPG, PNG, or WEBP image to a PDF document in seconds. No software, no signup, completely free.
Feb 22, 2026 8 min read
How to Make an Image Smaller – 3 Easy Methods
Make images smaller in 3 ways: reduce file size, shrink dimensions, or both. All free, all online, no software needed.
Feb 25, 2026 6 min read
How to Crop an Image Online Free – No Software Needed
Crop any photo to a custom size, aspect ratio, or preset dimensions instantly. Free, no login, works on any device.
Mar 3, 2026 8 min read
Image File Formats Explained: JPG, PNG, WEBP, SVG, AVIF & More
A complete guide to every major image format — what each one is best for, file size comparisons, and when to use each.
Mar 4, 2026 10 min read
Core Web Vitals & Images: How to Fix LCP, CLS, and INP
Images are the #1 cause of failing Core Web Vitals. Here's exactly how to fix LCP, CLS, and INP caused by image issues.
Mar 5, 2026 9 min read
How to Flip an Image Online Free – Mirror Horizontally or Vertically
Flip any photo horizontally (mirror effect) or vertically (upside down) in one click. Free, instant, no signup.
Mar 6, 2026 4 min read
What is Image DPI? How to Check and Change DPI Free Online
DPI explained in plain language — what it means for print vs web, how to check your image's DPI, and how to change it.
Mar 8, 2026 7 min read
How to Convert a Color Image to Black and White Online Free
Turn any photo into a professional black and white image instantly. Tips for dramatic results and avoiding flat grayscale.
Mar 7, 2026 5 min read
Best Free Online Image Compressors in 2026 (Tested & Compared)
We tested TinyPNG, Squoosh, iLoveIMG, and PixlTools on the same image. Here are the real compression results, pros, cons, and when to use each.
Mar 1, 2026 8 min read
How to Compress Images on iPhone and Android (Free)
Reduce image file sizes on your phone without downloading any app. Works on iPhone, Android, and all mobile browsers.
Mar 9, 2026 5 min read
How to Convert PNG to JPG for Free Online (Instant)
Convert any PNG image to JPG in seconds — free, online, no signup. Includes tips on when to convert and when not to.
Mar 16, 2026 6 min read
How to Resize an Image Without Photoshop (Free & Online)
Resize photos to any dimension without Photoshop or any software. Works on Windows, Mac, iPhone, and Android.
Mar 11, 2026 5 min read
AVIF vs WebP: Which Image Format is Better for Your Website?
AVIF and WebP are both modern image formats that outperform JPEG and PNG. Here's which one to use and when.
Mar 10, 2026 8 min read
How to Convert HEIC to JPG on iPhone and Mac – Free & Instant
iPhone photos save as HEIC by default, but most apps and websites need JPG. Here's how to convert HEIC to JPG on any device — for free.
Mar 17, 2026 6 min read
How to Compress Images for WhatsApp – Fast & Free
WhatsApp compresses photos automatically, causing quality loss. Here's how to send high-quality images without WhatsApp degrading them.
Mar 13, 2026 5 min read
How to Make a Photo Collage Online for Free – No App Needed
Create beautiful photo collages in your browser for free. Combine multiple photos into a grid layout — no software to install, no watermarks.
Mar 12, 2026 5 min read
How to Reduce Image File Size on iPhone – 4 Free Methods
iPhone photos can be 3–6MB each. Here are 4 ways to reduce image file size on iPhone without installing extra apps.
Mar 15, 2026 5 min read
How to Batch Process Images Without Photoshop (Free Methods)
Need to resize, compress, or convert dozens of images at once without paying for Photoshop? Here are the best free methods for batch processing images — including online tools, command-line options, and free desktop software.
Mar 14, 2026 10 min read
How to Compress an Image Below 20KB (Free & Online)
Need an image under 20KB for a form, job portal, or government website? Here's the fastest way to hit that file size limit without destroying quality.
Apr 5, 2026 6 min read
How to Compress Images for Email – Smaller Attachments, Faster Send
Email providers limit attachments to 10–25MB. Here's how to compress photos before attaching them so they send faster and actually get delivered.
Apr 7, 2026 5 min read
How to Compress an Image to 100KB or 200KB – Fast & Free
Form portals, job sites, and admissions pages often require photos under 100KB or 200KB. Here's exactly how to hit that target without guessing.
Apr 9, 2026 5 min read
Best Image Size for WordPress Websites (2026 Guide)
The right image dimensions and file size for WordPress can cut your page load time in half. Here's the complete guide with recommended sizes for every image type.
Apr 12, 2026 8 min read
How to Compress a Photo for Passport, Visa or Job Application
Most passport and visa portals accept images under 100KB or 200KB. Here's how to compress your photo to the exact file size required — free, online, no software.
Apr 14, 2026 6 min read
How to Compress an Image Below 50KB (Free & Online)
Need to get a photo under 50KB for a job application, government portal, or email? Here's the exact process — no software, works on phone and desktop.
Apr 16, 2026 5 min read
How to Convert HEIC to JPG on Windows 11 – Free, No Software
iPhone photos are saved as HEIC, but Windows 11 can't open them without extra steps. Here are 3 free methods to convert HEIC to JPG on Windows 11 — no paid software needed.
Apr 17, 2026 6 min read
WebP to JPG Converter – Free, Instant, No Signup
Convert WebP images to JPG in seconds — free online tool, no account needed. Works on Windows, Mac, iPhone and Android. Preserves quality, no watermarks.
Apr 18, 2026 5 min read
How to Resize and Compress Images for LinkedIn (Profile, Banner & Posts)
LinkedIn has strict image size requirements that most people ignore — resulting in blurry profiles and slow-loading posts. Here are the exact specs and how to fix your images free.
Apr 19, 2026 6 min read