a.k.a. « slim­web­ware ». Seve­ral web­sites I use as quick tools. Please men­tion any other you know. Secu­rity whatismyip.fr — know thy IP iplocation.net — where on Earth is that IP? magic-net.info/index.dnslookup — net­work analysis...

a.k.a. « slim­web­ware ». Seve­ral web­sites I use as quick tools. Please men­tion any other you know.

Secu­rity

• whatismyip.fr — know thy IP
• iplocation.net — where on Earth is that IP?
• magic-net.info/index.dnslookup — net­work analysis
• canyouseeme.org — port scan
• youhavedownloaded.com — public logs of your ille­gal downloads

Web coding

• base64online.com — decodes base64
• ismyblogworking.com — web auditing
• websiteoptimization.com — web auditing
• workwithcolor.com/hsl-color-picker-01.htm — color wheel, hsla compatible
• wordcounttool.com — counts words
• managewp.com — excellent for Word­Press webmasters
• pagespeed.googlelabs.com — speed vali­da­tor. I’m happy with a web agency if everything’s green here
• webpagetest.org — and here too.
• validator.w3.org — HTML vali­da­tor. I need one that scan the whole site
• border-radius.com. Gene­rate border-radius code.
• HSL Color Picker. Works with HSLa, convert… excellent color picker.
• CSS vali­da­tor — a lit­tle bird tells me this one will be hard to satisfy.
• Human time to Unix time (and back) — Convert human-readable date to some­thing like 1322442060 (seconds since 1970-01-01)
• caniuse.com — brow­ser support

Others

• rot13.com — encodes/decodes rot13
• profilewatch.org — check your Face­book privacy
• SaveVideo.me — sup­ports more web­sites than saveyoutube.
• PDFfcompress/ — up to 5 Mb, it’s free.
• J’aime attendre — queue lines IRL (France only)
• Online stop­watch — keeps « rin­ging » (roos­ter), so good fire-and-forget
• Audio­tag — iden­tify mp3 and others by uploading
• Cue­promp­ter — great for pre­sen­ta­tion. Works on local cache only too
• ean-search.org — look out for a pro­duct by its unique Euro­pean iden­ti­fier, the EAN.