About Toolkits

Toolkits (toolkits.online) is a free collection of browser toolkits for everyday image, developer, and personal-finance tasks. No accounts. No installs. Most processing stays on your device.

What you can do here

Each kit focuses on a practical job. Tools are intentionally small: one clear task per page, with short explanations so you understand what happens to your files or numbers.

ImgKit — Compress, convert, and resize images — HEIC, WebP, PNG, JPG — in your browser.
DevKit — JSON, diffs, regex, Base64, and URL encode tools for everyday debugging.
FinKit — Educational calculators for loans, APY, tips, and everyday money math.

Privacy by design

Image converters and developer utilities run in your browser using local APIs. We do not operate an upload pipeline for those tools, so the photos, JSON, or text you paste are not sent to our servers as part of the tool workflow. Finance calculators apply standard formulas to the numbers you enter and do not connect to banks or rate feeds.

Like most websites, we may use analytics and advertising cookies. Details live on the Privacy Policy page.

Who this is for

Toolkits is built for people who need a quick conversion, validation, or estimate without signing up for another SaaS product. Results from FinKit are educational estimates, not personalized financial advice.

Contact

Questions about the site or this page: see Contact.