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.
The site is organized as three kits under one brand so related tools and explainers stay together. You can bookmark a single tool page or browse from a kit home when you are exploring options.
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.
How the kits differ
ImgKit is for visual files: compress photos for portals, convert HEIC or WebP when a website only accepts JPG or PNG, and resize to common pixel limits. DevKit is for text and structured data you already have open in a browser tab — JSON, diffs, regex, Base64, and URL encoding. FinKit is for educational arithmetic on loan and everyday money scenarios using formulas you can also find in textbooks and spreadsheets.
Guides sit next to the tools. They are not blog filler: each article explains when to use a format or formula, common mistakes, and how the matching tool fits into a simple workflow.
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, including how Google AdSense and related advertising cookies work and how you can opt out of personalized ads.
Who this is for
Toolkits is built for people who need a quick conversion, validation, or estimate without signing up for another SaaS product. Students submitting forms, developers debugging a payload, and anyone exploring loan math before a conversation with a lender are typical visitors.
Results from FinKit are educational estimates, not personalized financial advice, credit decisions, or product offers. Always verify important numbers with your own spreadsheets, institutions, or qualified advisors when money is on the line.
What we do not do
We do not host user accounts, store your uploaded files as a cloud drive, or sell access to the tools behind a paywall. We do not claim that calculators replace professional advice. We do not scrape your local files outside the page you opened — each tool only sees what you choose to paste or select in that tab.
Contact
Questions about the site, a broken tool, or privacy: see Contact. Include the page URL when you report a bug so we can reproduce it quickly.