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Discussion on: 🧰 50 Developer tools to make your life a little easier

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kilianvalkhof profile image
Kilian Valkhof

Hey Iain, that's a great list! I noticed you missed an "n" at the end of #40, "JSON Web Toke_n_"

I'd love for you to check out Polypane. It's an app that I've been building for the past few years. It's similar to sizzy and responsively (your #2 and #21), except it does way more and has been around for a bit longer than both. It replaces all these items on your list too:

7. CSS Scan: In Polypane you can select any element and copy all the CSS with a single click, or just the CSS for a specific selector
13. Window Resizer: Polypane doesn't just show devices like other multi-pane browser, but it also parses your CSS, extracts your responsive breakpoints and makes screens from that.
16. AXE: There's a built-in accessibility panel that highlights any issues with a page, making it really easy to find and fix issues.
18. Contrast checker: Polypane's built-in contrast checker finds all contrast issues on a page and also suggest improved colors for each. I also made a free online contrast checker that implements the same technology.
46. Who can use: We implement over a dozen different "overlays" that let you check a website for various types of color blindness but also other visual impairments like glaucoma or situational ones like bright sunlight.
49. Metatags: Polypane has a "meta panel", that shows you all the relevant meta tags (making it really easy to see often overlooked typos and missing info) but also renders pixel perfect previews for Facebook, Twitter, Slack, LinkedIn, Discord and Google results. This took a lot of work to get right, but it's still the only meta preview that gets all the rendering right.

Lastly, if you want something like 45. Screen size map but for your own site, check out visualize browser sizes, which can generate something like that based on your site's Google Analytics!

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iainfreestone profile image
Iain Freestone

The overlay features in Polypane are fantastic!

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iainfreestone profile image
Iain Freestone

Hi Kilian

Thank you, I had not come across Polypane before but I have just installed the 14 day free trial and I am very impressed. I also like that I can use on 3 devices, this is something I miss with Sizzy. I will try using Polypane for the next 14 days and see how I get on.

I have added your tool to the list.

For reference to others here is a screen shot with the some of the same devices as my other screen shot.

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