Browse by category
Pick a category to see its tools.
Finance
Loan, interest and percentage calculators.
4 toolsText
Word counter, case converter, text to speech and more.
5 toolsDeveloper
JSON, Base64, password, UUID, regex and more.
7 toolsImage
Compress, resize and convert images in your browser.
3 toolsHealth & Utility
BMI, age and date-difference calculators.
3 toolsWebmaster
IP, DNS, meta tag and keyword tools.
4 toolsNetwork
Whois, port, ping, subnet and speed tools.
5 toolsText Analysis
Reverse, count and analyze text.
4 toolsWeb Management
HTTP headers, robots.txt and Open Graph.
3 toolsSEO Backlink
Analyze links and anchor text.
2 toolsDomain
Domain availability and SSL checks.
2 toolsWebsite Checker
Status, redirects and uptime.
2 toolsPDF Converter
Merge, split, rotate, watermark and convert PDFs.
10 toolsUnit Converter
Length, weight, temperature and more.
4 toolsBinary Translator
Text to binary and hex.
2 toolsAI Tools
Background remover, face detector and sentiment analysis.
3 toolsEmoji
Copy any emoji or build a combo.
1 toolAdSense
Revenue calculator, eligibility checker, policy generator and SEO checklist.
5 toolsPopular tools
The tools people use most.
Finance calculators
Text tools
Developer tools
Image tools
Health & utility calculators
Webmaster tools
Network tools
Text analysis tools
Web management tools
SEO backlink tools
Domain tools
Website checker tools
PDF converter tools
Unit converter tools
Binary translator tools
AI tools
Emoji tools
AdSense tools
Everything you need, in one toolbox
SB Link Tools is a free collection of more than 90 online tools for everyday work and study. Instead of installing separate apps for every small job, you can open a calculator, convert a file, format some text, or check a website — all from one place, right in your browser. The tools are grouped into clear categories so you can find what you need in seconds: finance calculators for loans, interest and discounts; text tools for counting words, cleaning up spaces and generating slugs; developer tools for JSON, Base64, passwords and regex; image tools for compressing, resizing and converting pictures; and a full set of network and webmaster tools for checking domains, DNS, SSL and website health.
We built this site around one idea: a good tool should be fast, free and private. There is no account to create, no premium tier to unlock, and no limit on how many times you can use a tool. Every feature on this page is available to everyone, forever, at no cost. Whether you are a student finishing a maths assignment, a developer debugging an API response, a small-business owner working out a discount, or a parent checking a child's screen-time maths — the tool you need is already here.
How the tools work
Most tools on SB Link Tools run entirely in your browser. That means your files and text stay on your own device — they are not uploaded to a server, so nothing is stored, logged or shared. A small number of tools (the translator and server-side image processing) send data to a processing service to produce a result, and those tools say so clearly on their pages. This design keeps the site fast, keeps your data private, and lets the whole collection work without any sign-up or payment.
Each tool page includes clear instructions, the answer you asked for, and a short set of frequently asked questions, so you can be confident about what the tool does before you use it. If a tool ever gives you a surprising result, the page explains why, and you can always reach us through the contact page.