Ask HN: Most Useful Bookmarklet?

28 points by andrewparker ↗ HN
Got any killer bookmarklets you like?

My favorite right now is "Instacalc", with "Zap Colors" coming in close second.

19 comments

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http://www.instapaper.com/ – definitely. It's so darn useful.
i'm a little biased, but check out http://shifd.com/tools similar to instapaper, delicious, etc in that you can bookmark links, but you can also do plain text (notes, addresses, recipes, etc). one use i like - you can highlight addresses on a page and click the bookmarklet which will save to shifd.com...then you can access the address+map on your phone.
I find http://www.sprymedia.co.uk/article/Design Design to be really handy when I'm making sure text line cadence is right. It's handy all around for design: powerful grid, rulers, measuring, and targeting tools.

http://westciv.com/xray/ XRAY keeps a spot on my bookmark bar. It's an HTML-traversing bookmarklet that lets me figure what's going on with underlying HTML and positioning CSS without leaving the page. It's been somewhat marginalized since Safari's Web Inspector started rocking so hard.

They; InstaPaper (also great); and Delicious/Facebook/Yahoo Bookmarks share/post bookmarklets are what currently dominate my bookmark bar.

Wow! Thanks for Design and XRAY. Those look to be pretty useful.
The bookmarklet for the app I'm building... :)
I use TinyUrl and the Wikipedia bookmarklet more than any others: javascript:(function(){q=document.getSelection(); if(!q){void(q=prompt('Wikipedia keywords:',''))}; if(q)location.href='http://en.wikipedia.org/w/wiki.phtml?search='+escape(q)})()

Here's an amazon.com lookup one as well: javascript:void(q=prompt('Enter%20text%20to%20search%20Amazon.',getSelection()));if(q)void(location.href='http://www.amazon.com/exec/obidos/external-search/?keyword='...(q)+'&mode=blended&tag=blogography00-20&Go=Go')

The one that I use to post the current page to del.icio.us with. I've clicked it several thousand times in the past few years.
I like the one for http://faves.com, primarily because it's the social bookmarking app most of my friends use. Del.icio.us is the other one.