Search 160+ developer tools and run the common ones right here: Base64, JSON, URL encode, hash, case convert.
Users
4
+2 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#272K
#226K among extensions
Version
1.0.0
updated 24 Aug 2026
Users
monthly, 2 months
Latest, 16 Oct 2026:4 usersMove the mouse over the chart for any month
Ratings count
monthly, 2 months
Latest, 16 Oct 2026:0 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About Toolz.dev - Developer Tools
Every tool on toolz.dev, one keystroke from wherever you are.
Press Alt+T, type three letters, hit Enter. No aiming at a toolbar icon, no
tab full of bookmarks, no remembering which site had the JSON formatter.
RUNS IN THE POPUP, OFFLINE
Five tools work without opening a tab and without a network connection:
• Base64 encode and decode, Unicode-safe
• JSON format and minify, with the parse error if there is one
• URL encode and decode, both encodeURIComponent and encodeURI
• SHA-256, SHA-384 and SHA-512 hashing
• Case conversion: camelCase, PascalCase, snake_case, kebab-case, CONSTANT
Whatever you paste is transformed in the popup on your own machine. It is
never uploaded, never logged, and never leaves the browser.
FINDS THE REST
Search the whole catalogue by name, keyword or category, or browse 28
categories: PDF, image, data, CSS, SEO, security, converters, calculators and
more. Favorite the ones you use and they stay at the top.
Type "tz" in the address bar to search without opening the popup at all.
WHAT IT ASKS FOR
One permission: storage, to remember your favorites on this device.
No account. No host permissions, so it cannot read or change the pages you
visit. No content scripts. No analytics, no tracking, no profile. Your
favorites are stored on your device and are never sent anywhere.
Open source, and the tools are free with no signup: https://toolz.dev
Growth
Window
Users
Change
Ratings
Rating
7 days
+1
+33.3%
0
0.00
30 days
+2
+100.0%
0
0.00
Chrome Web Store search rankings
Where Toolz.dev - Developer Tools appears when people search the store, with the 30 day change