Image formats: Pixel data from encoders to decoders
https://developer.mozilla.org/en-US/blog/image-formats-pixels-graphics/ #Images #ImageFormats #Pixel

Webp.

Can we not??

#www #web #images #imageformats #fetch

Google *Unkills* JPEG XL?

https://tonisagrista.com/blog/2025/google-unkills-jpegxl/

#HackerNews #Google #Unkills #JPEG #XL? #technology #jpegxl #google #news #imageformats

🙄 Ah, the joys of JPEG XL—the image format that bravely tosses bit depth into the abyss of irrelevance. Who needs precision when you can have chaos? Meanwhile, poor #AVIF is stuck in a corner crying into its extra bits. 🤡
https://www.fractionalxperience.com/ux-ui-graphic-design-blog/why-jpeg-xl-ignoring-bit-depth-is-genius #JPEGXL #imageformats #technews #chaosprecision #bitdepth #HackerNews #ngated

Why JPEG XL Ignoring Bit Depth Is Genius (and Why AVIF Can't Pull It Off)

https://www.fractionalxperience.com/ux-ui-graphic-design-blog/why-jpeg-xl-ignoring-bit-depth-is-genius

#HackerNews #JPEGXL #AVIF #BitDepth #ImageFormats #GraphicDesign

OnlyJPG – Client-Side PNG/HEIC/AVIF/PDF/etc to JPG

https://onlyjpg.com

#HackerNews #OnlyJPG #ClientSide #JPG #Conversion #ImageFormats #PNG #HEIC #AVIF #PDF

On the latest #ATPpodcast I heard @siracusa pronounce the HEIC image format as a word - "heek" [hiːk]. He is the first human I have heard pronounce it as a word. I feel like, for me, it will always be "H E I C".

There are several acronyms I treat this way, that I've heard others say as words, thinking about it.

PNG, SVG, BMP, IFF, SQL, URL, LED, GUI, PDF, PCMCIA (well...), etc.

I am old and set in my ways.

By the way, GIF is not on that list because I pronounce it as a word starting with a soft G, because that is how that is pronounced.

#filesystem #imageformats #files #fileextensions #acronyms #computing #linguistics #heic

Ars Technica: Adult sites are stashing exploit code inside racy .svg files. “Dozens of porn sites are turning to a familiar source to generate likes on Facebook—malware that causes browsers to surreptitiously endorse the sites. This time, the sites are using a newer vehicle for sowing this malware—.svg image files.”

https://rbfirehose.com/2025/08/10/ars-technica-adult-sites-are-stashing-exploit-code-inside-racy-svg-files/

The Best Image and Video Formats for the Biggest and Most Popular Social Platforms (2025 Guide)

Creating stunning visual content is only half the battle. The other half is ensuring it looks just as incredible after you hit “upload.” A perfectly edited photo can become a pixelated mess, and a high-definition video can look blurry and cropped. Why does this happen? It almost always comes down to using the wrong specs. This guide provides the best image and video formats, dimensions, and aspect ratios you need to make your content shine across every major social media platform in 2025.

Think of this as your definitive cheat sheet. Following these guidelines ensures your visuals are sharp, professional, and optimized for maximum engagement. After all, when your content fits the platform perfectly, it captures more attention and stops the scroll. This comprehensive list covers everything from Instagram and TikTok to professional networks like LinkedIn and niche communities like Discord and Reddit. Let’s make sure your hard work pays off.

General Format Recommendations: The Universal Rules

Before we get into platform specifics, a few universal truths can save you a lot of headaches. While each platform has its own quirks, most modern social networks are built to handle a few key formats exceptionally well. Sticking to these is a great starting point.

Platform-Specific Guidelines for the Best Image and Video Formats

Now, let’s get specific. Each platform prioritizes different content types and screen orientations. Matching these specs is crucial for the algorithm and the user experience.

1. Instagram: Mastering the Visual Grid

Instagram is all about aesthetics. Therefore, getting your dimensions right is non-negotiable. Using a 4:5 portrait format for feed posts is a smart move, as it takes up more vertical space on a phone screen.

• Feed Image (Portrait): 1080×1350 px (4:5)
• Feed Image (Square): 1080×1080 px (1:1)
• Feed Image (Landscape): 1080×566 px (1.91:1)
• Stories & Reels: 1080×1920 px (9:16), MP4 format. Keep Reels under 4 GB and 60 seconds for maximum reach.
• Carousel: Can use any of the feed image dimensions.

2. TikTok: The Vertical Video Powerhouse

TikTok’s entire experience is built around full-screen, vertical video. There is no room for error here. You must create content specifically for the 9:16 aspect ratio to look native on the platform.

• Videos: 1080×1920 px (9:16). Use MP4 or MOV files. The max length is now 10 minutes, giving you more creative freedom.
• Thumbnails: 1080×1920 px (JPG/PNG). TikTok will auto-crop this, so keep key elements centered.

3. Facebook: The All-in-One Platform

Facebook is versatile, supporting everything from text updates to ephemeral Stories and long-form video. For feed images, the classic 1.91:1 ratio works well for links, but a 4:5 portrait image will command more attention in the mobile feed.

• Feed Image (Shared Link): 1200×630 px (1.91:1)
• Feed Image (Portrait): 1080×1350 px (4:5)
• Stories: 1080×1920 px (9:16)
• Videos (Feed): Use MP4/MOV. A 4:5 or 1:1 aspect ratio performs best. Keep files under 4 GB and under 240 minutes.
• Cover Video: Minimum 820×312 px, but shoot in 16:9 for best results.

4. YouTube: The King of Long-Form Video

For YouTube, the thumbnail is arguably as important as the video itself. It’s your content’s billboard. Standard videos remain in the cinematic 16:9 format, while Shorts directly compete with TikTok and Reels in a vertical format.

• Video Thumbnail: 1280×720 px (16:9), using JPG or PNG.
• Standard Video: 1920×1080 px (16:9), in MP4 format.
• Shorts: 1080×1920 px (9:16), in MP4 format and under 60 seconds.

5. WeChat (Weixin): China’s Super-App

WeChat is more than a messaging app; it’s an ecosystem. When sharing content on Moments (its social feed) or in articles, clean, properly sized visuals are key to looking professional.

• Moments Image: 1080×1080 px is a safe and effective dimension.
• Videos: MP4 format, with a maximum file size of 100 MB.
• Article Cover Image: 900×500 px.

6. Snapchat: Ephemeral and Authentic Content

Snapchat pioneered the vertical video story. Content here should feel immediate and native to the platform. Always shoot and edit in a vertical 9:16 format.

• Stories & Spotlight Videos: 1080×1920 px (9:16), using MP4 or MOV.
• Images: JPG/PNG. Vertical is strongly preferred.

7. Douyin: The Original Short-Form Giant

As the Chinese counterpart to TikTok, Douyin shares the same core DNA. It is entirely optimized for vertical video consumption. The best image and video formats for Douyin mirror those for TikTok.

• Videos: 1080×1920 px (9:16), in MP4 format. The max length is a generous 15 minutes.
• Thumbnails: 1080×1920 px (JPG/PNG).

8. X (formerly Twitter): Fast-Paced Conversations

Visuals on X need to grab attention quickly in a fast-scrolling feed. While the platform supports various sizes, a 16:9 landscape image is the most common and reliable for single-image posts.

• Image (In-feed): 1200×675 px (16:9). Keep image files under 5 MB.
• Videos: MP4 (H.264 codec). Max file size is 512 MB, with a time limit of 2 minutes and 20 seconds. Both 16:9 and 1:1 aspect ratios work well.

9. Pinterest: The Visual Discovery Engine

Pinterest is a visual search engine where aesthetics are paramount. Vertical pins (2:3 aspect ratio) perform significantly better because they are optimized for mobile viewing and take up more screen space.

• Standard Pins (Image): 1000×1500 px (2:3) is the recommended size.
• Video Pins: 1080×1920 px (9:16), but 4:5 and 2:3 also work. Use MP4 format.

10. Reddit: Community-Driven Content

On Reddit, content is king, but presentation matters. Subreddits have different cultures, but using standard formats ensures your posts are clear and accessible across the platform, whether on desktop or mobile.

• Images: Upload JPG or PNG files up to 20 MB.
• Videos: Use MP4 (H.264). The max file size is 1 GB and the video should be under 15 minutes. 16:9, 4:5, and square aspect ratios are all common.

11. Kuaishou: A Major Player in Short Video

Similar to TikTok and Douyin, Kuaishou is a dominant force in the short-form video market. Its audience expects content in a vertical, mobile-first format.

• Videos: 1080×1920 px (9:16), using MP4 or MOV.
• Thumbnails: Vertical orientation, using JPG or PNG.

12. Quora: Answering with Authority

When you add visuals to your Quora answers, you add credibility and break up long blocks of text. While you can embed videos, native uploads are also an option.

• Image Posts: A minimum of 600×314 px (JPG/PNG).
• Videos: MP4 (H.264). You can embed from YouTube/Vimeo or upload natively (up to 1 GB).

13. Discord: Building Community Hubs

Visuals on Discord are for communication and expression, from profile pictures to server emotes. File size limits are a key consideration, especially for users without a Nitro subscription.

• Profile Picture: Minimum 128×128 px (PNG).
• Image Uploads: Max 25 MB (JPG/PNG).
• Videos: MP4/MOV. The file size limit is 8 MB for free users and up to 100 MB for Nitro subscribers.

14. LinkedIn: Professional Networking with Polish

On LinkedIn, your content represents your professional brand. Consequently, polished, correctly sized visuals are essential. Portrait images (1080×1350) are increasingly popular as they stand out on the mobile feed.

• Post Image (Landscape): 1200×627 px
• Post Image (Portrait): 1080×1350 px
• Videos: MP4 format, with a duration between 3 seconds and 10 minutes. The max file size is 5 GB, and aspect ratios can range from 1:2.4 to 2.4:1.
• Cover Image: 1584×396 px.

15. LINE: Connecting Through Rich Media

LINE is a popular messaging app in Asia that features a timeline similar to other social networks. Clean, square images and reasonably sized videos work best here.

• Timeline Image: 1080×1080 px.
• Video Posts: MP4 format, with a max duration of 5 minutes and a file size under 300 MB.
• Stickers: PNG format is required for custom stickers.

16. Threads: Meta’s Conversational Platform

As a direct competitor to X, Threads is a text-first platform, but visuals play a huge role in stopping the scroll. The platform favors mobile-friendly, vertical formats inherited from its parent company, Meta.

• Images: 1080×1350 px (4:5) is the preferred dimension.
• Videos: MP4 format. Both 9:16 and 4:5 aspect ratios work well. The max video length is 5 minutes.

17. Twitch: The Live Streaming Leader

For streamers on Twitch, branding is everything. Your channel banner, thumbnails, and emotes create a cohesive identity for your community.

• Channel Banner: 1920×480 px.
• Video Thumbnail: 1280×720 px.
• Streams/VODs: 1920×1080 px (16:9), with recordings typically saved as MP4s.
• Emotes & Badges: PNG format is required for transparency, with sizes of 112×112, 56×56, and 28×28 px.

18. BeReal: Authenticity by Design

BeReal is unique because it removes the question of formatting. You cannot upload pre-made content. The app captures a dual-camera photo live, ensuring every post is authentic and in the moment.

• Photos: Captured in-app at a 1080×1920 px resolution.
• No upload customization is available.

The Ultimate Social Media Format Summary Table

Need a quick answer? This table is your go-to resource. Bookmark this page and come back whenever you need to double-check the best image and video formats before posting.

If you don’t want to design eye-catching social media posts from scratch, we recommend taking a look at platforms like Adobe Stock, Creative Market, or Envato Elements. They have thousands of templates for all your social media channels and preferred design tools such as Canva or Adobe Express. Feel free to browse WE AND THE COLOR’s Design and Templates section for more inspiring content.

#formats #imageFormats #imageSizes #sizes #SocialMedia #videoFormats #videoSizes

Comparing image formats? Here's a quick guide. Use JPG for small file sizes and web use, PNG for transparent backgrounds and logos, and TIFF for high-quality prints. Each format has its strengths depending on your needs in graphic design. Choose wisely! #GraphicDesignTips #ImageFormats #DesignResources #DigitalArt

Choosing between JPG, PNG, and TIFF? Here's a quick guide: JPG is great for web use due to small file sizes but loses quality when compressed. PNG offers lossless compression and supports transparency, ideal for graphics. TIFF is a high-quality format perfect for print, offering lossless compression. Select based on your need for quality, file size, and use case. #GraphicDesignTips #ImageFormats #DesignAdvice #VisualTextures

#Design #Overviews
Why JPEGs still rule the web · “It’s difficult to topple a format with a 30-year head start.” https://ilo.im/164pyx

_____
#Photos #Images #ImageFormats #JPEG #DCT #Compression #Content #Development #WebDev #Frontend

🔥 Breaking news: #JPEGs still reign supreme after three decades, and apparently, that's so controversial it broke the internet! 🖼️💥 Who knew discussing image formats would lead to a 403 Forbidden Error – looks like even the web server couldn't handle the excitement! 🤦‍♂️
https://spectrum.ieee.org/jpeg-image-format-history #ImageFormats #InternetControversy #WebServerError #DigitalArt #HackerNews #ngated

Why JPEGs Still Rule the Web After 30 Years

https://spectrum.ieee.org/jpeg-image-format-history

#HackerNews #JPEG #Evolution #Web #DigitalArt #ImageFormats

PC World: Security flaw found in GIMP! Avoid opening this file type until it’s fixed. “More specifically, the vulnerability occurs when an ICO file is much larger than its stated image size. The creator of an ICO file can specify any dimensions for the image, but the actual dimensions may be larger, which results in a calculated buffer size that’s too small. When the buffer overflows, […]

https://rbfirehose.com/2025/05/17/pc-world-security-flaw-found-in-gimp-avoid-opening-this-file-type-until-its-fixed/

Lifehacker: Google Photos Now Lets You Convert Standard Photos to Ultra HDR. “Ultra HDR is a cool image format. Like traditional HDR, this format packs more image data into each media file, which translates into brighter highlights, darker shadows, and more vibrant colors. However, Ultra HDR files also contain the standard dynamic range (SDR) version of the image as well. That way, you can […]

https://rbfirehose.com/2025/04/22/lifehacker-google-photos-now-lets-you-convert-standard-photos-to-ultra-hdr/

Apparently Facebook doesn't know what to do when you upload a GIF that is not animated -- just a single image.

Animation wasn't even added until GIF89a! The main Discord channel I haunt also disallows GIFs wholesale -- to avoid animated GIFs any *.GIF file is trashed.

Is this what the human race has come to?

#ITSNOTAVIDEO #GIF #animGIF #images #imageformats #woeisme #ilament #Facebook #society #sadness #regret #tech #Fb

Hey, speaking of Alt Text (which I wasn't), when are we going to update some common image format, or create a better new one, that allows alt text to travel with the image metadata so that it could automatically be added to any on-line posting?

#AltText #Metadata #Images #ImageFormats #ideas

🔵🟡 What Skills Should You Focus on as Junior Web Developer in 2024?
at @FrontendMasters
#JuniorWebDeveloper #webdev #HTML #CSS #javascript #accessibility #ImageFormats #datastorage #API #HTTP #serversandbackendlanguages #versioncontrol

https://frontendmasters.com/blog/what-skills-should-you-focus-on-as-junior-web-developer-in-2024/

What's your favorite format for saving images :?

#ImageFormats #filetypes #linux