How To Compress Images For Website

It easier if you provide more detail e.g. whether you are bound to a particular format. Im assuming lossypression via jpeg for this response. Also would be nice to know the original or one thousand of them. Although I wholeheartedly agree that since it for a website you need to optimize for the user experience of people visiting the site so think about what percentage of users will experience slow loads due to large transfer as well as what resolution it will be viewed at (and maybe if they need high resolution only on occasion let them click for high res) nevertheless I often approach it slightly differently. A lot of digital cameras these days record at remarkably high resolution but suffer from the following two issues. First they are not so good atpression so the jpeg into gimp (freely available) and have a good look at it to see what I think of the effective resolution. For example zoom in or out until it looks about as crisp as possible. If I can detect blurring at 1% but it looks much higher quality when zoomed out to 5% for example maybe I decide that the effective resolution is only about half of the physical resolution so I scale the is still huge can I improve it by cropping unnecessary junk at the edges. If so that a bonus in terms of size reduction. Don forget to consider whether you care about the exact aspect ratio. Final step is when exporting as jpeg turn on preview-in-. In general gimp produces much tighter jpeg straight out of the camera. WEBP and AVIF formats offer even betterpression than JPEG for the same quality level but are not as standard in browsers for general viewing audience. Update I just followed Rich Altmaier . Since my message is similar maybe that serves as a good clarifying abstract in case my message is too long-winded.

hey you can use online tools like press pngjpggifoptimize pnggifjpg Images online s to optimize all s resize jpeg resize png resize gif Online if your s and reducing size. images optimizer are very popular nowadays as it speed up site like anything and you get advantage over yourpetitors in google search. google loves fast website so does users

Need more con on what you website is... nfor example who is uploading the s you can use JPEGMini or to press the s and you can't enforce thepression the best solution is to implement the API from Kraken or similar. There are also some services like google PageSpeed Service that willpress the images for you with a simple change on URL and DNS.

UPDATEnSince I wrote this answer some tools (like SmushIt) disappeared but fundamentally new tools and approaches appeared on the market. Namely tools like JPEGmini ( JPEGmini - Your photos on a diet! ) and CompressorIO (on-line optimize andpress your formats emerged that use differentpression techniques and achieve better results but have fragmented support. See my answer here What -format-should-I-use-on-my-website n horizontal-rule There are twoponents to it - lossy and lossless. Lossypression is also known as jpeg quality and mentioned by Katie Bremer user 54516 already - just use any tool like Adobe Photoshop's Save for web that allow manipulating the jpeg quality and reduce it to the lowest setting which still produces acceptable result for your sn %2Screencasts %2Screencasts Now the second part of the answer is losslesspression - the goal is to preserve the quality of the s using more efficient parameters. mentioned above is a tool developed by Stoyan Stefanov user 331743 and Nicole Sullivan at Yahoo! aplishes this by running a handful of tools with different parameters and picking the smallest resulting -optimization-tools as one does not replace another. Lossless can be automated though while lossy will require human intervention. It is kind-of obvious that s but never do that anymore). Exceptions are tools like Google Maps that use resized lower quality s were replaced by vector graphics. He mentioned project that allows for cross-browser support

Apple is really smart with determining how to render their website. They use the basic culprits; determining whether or not you are using a HiDPI display (Retina Display) through the information your browser is sendingpressing the s as you scroll (which overall makes it seem faster) and using server sidepression (which has been around forever).