SB Link Tools

Free online tools, done right

Calculators, converters and utilities that run right in your browser — fast, private and free. No signup, no uploads.

Browse by category

Pick a category to see its tools.

Finance

Loan, interest and percentage calculators.

4 tools

Text

Word counter, case converter, text to speech and more.

5 tools

Developer

JSON, Base64, password, UUID, regex and more.

7 tools

Image

Compress, resize and convert images in your browser.

3 tools

Health & Utility

BMI, age and date-difference calculators.

3 tools

Webmaster

IP, DNS, meta tag and keyword tools.

4 tools

Network

Whois, port, ping, subnet and speed tools.

5 tools

Text Analysis

Reverse, count and analyze text.

4 tools

Web Management

HTTP headers, robots.txt and Open Graph.

3 tools

SEO Backlink

Analyze links and anchor text.

2 tools

Domain

Domain availability and SSL checks.

2 tools

Website Checker

Status, redirects and uptime.

2 tools

PDF Converter

Merge, split and convert PDFs.

3 tools

Unit Converter

Length, weight, temperature and more.

4 tools

Binary Translator

Text to binary and hex.

2 tools

AI Tools

Background remover, face detector and sentiment analysis.

3 tools

Popular tools

The tools people use most.

›EMI / Loan CalculatorMonthly payment & interest ›Word CounterWords, characters & reading time ›Image CompressorShrink JPG, PNG & WebP ›JSON FormatterFormat, validate & minify ›Password GeneratorStrong random passwords ›BMI CalculatorBody mass index check ›Percentage CalculatorPercent of, increase & decrease ›Age CalculatorYears, months & days old

Finance calculators

›EMI / Loan Calculator ›Compound Interest Calculator ›Simple Interest Calculator ›Percentage Calculator

Text tools

›Word Counter ›Case Converter ›Remove Duplicate Lines ›Lorem Ipsum Generator ›Text to Speech

Developer tools

›JSON Formatter ›Base64 Encoder / Decoder ›Password Generator ›UUID Generator ›Regex Tester ›URL Encoder / Decoder ›Unix Timestamp Converter

Image tools

›Image Compressor ›Image Resizer ›Image Converter ›Image to Base64 ›Image Grayscale ›Image Flip & Rotate

Health & utility calculators

›BMI Calculator ›Age Calculator ›Date Difference Calculator

Webmaster tools

›IP Address Lookup ›DNS Lookup ›Meta Tag Generator ›Keyword Density Checker

Network tools

›Whois Lookup ›Port Checker ›Ping Test ›Subnet Calculator ›Internet Speed Test

Text analysis tools

›Reverse Text ›Word Frequency Counter ›Find and Replace ›Alphabetical Line Sorter

Web management tools

›HTTP Header Checker ›Robots.txt Generator ›Open Graph Generator

Domain tools

›Domain Availability Checker ›SSL Certificate Checker

Website checker tools

›Website Status Checker ›Redirect Checker ›Website Error Checker

PDF converter tools

›Merge PDF ›Image to PDF ›Split PDF

Unit converter tools

›Length Converter ›Weight Converter ›Temperature Converter ›Data Storage Converter

Binary translator tools

›Text to Binary ›Text to Hex

AI tools

›AI Background Remover ›AI Face Detector ›AI Sentiment Analyzer