123EasyTools
Free, fast, useful online tools
Calculators, converters, text utilities, developer tools, image tools, SEO tools, and everyday helpers that run in your browser.
BMI CalculatorBMI Calculator for quick browser-based results.Open toolAge CalculatorAge Calculator for quick browser-based results.Open toolPercentage CalculatorCalculate percentages, percentage values, and percentage change.Open toolDiscount CalculatorDiscount Calculator for quick browser-based results.Open toolLoan CalculatorLoan Calculator for quick browser-based results.Open toolCompound Interest CalculatorCompound Interest Calculator for quick browser-based results.Open tool
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Tool collections
Focused groups of related tools for common workflows like text cleanup, image work, SEO, data conversion, and math.
Marketing Calculators
Marketing Calculators grouped for quick access to related browser-based tools.
Finance Calculators
Finance Calculators grouped for quick access to related browser-based tools.
Date Tools
Date Tools grouped for quick access to related browser-based tools.
Text Tools
Text Tools grouped for quick access to related browser-based tools.
Business Tools
Business Tools grouped for quick access to related browser-based tools.
Hash Generators
Hash Generators grouped for quick access to related browser-based tools.
SEO & Webmaster Tools
SEO & Webmaster Tools grouped for quick access to related browser-based tools.
Text Cleaning Tools
Text Cleaning Tools grouped for quick access to related browser-based tools.
Text Extraction Tools
Text Extraction Tools grouped for quick access to related browser-based tools.
Developer Data Converters
Developer Data Converters grouped for quick access to related browser-based tools.
Math & Statistics Calculators
Math & Statistics Calculators grouped for quick access to related browser-based tools.
Developer Formatters
Developer Formatters grouped for quick access to related browser-based tools.
Image Tools
Image Tools grouped for quick access to related browser-based tools.
Unit Converters
Unit Converters grouped for quick access to related browser-based tools.
Tool categories
Browse by task type when you already know what kind of tool you need.
Free Online Text Tools
Free online text tools for writing, editing, cleanup, comparison, extraction, and everyday content work. Count words and characters, compare two text versions, remove duplicate lines, extract emails or URLs, and clean copied text before using it in documents, forms, posts, spreadsheets, or development workflows. These tools are designed for quick browser use without turning a simple text task into a full editing project.
Free Unit and Utility Converters
Free unit and utility converters for everyday measurements, shopping, travel, files, images, and quick estimates. Convert length, weight, temperature, area, speed, file size, storage, pressure, volume, and more. This category also includes practical helpers for clothing sizes, shoes, luggage dimensions, fuel cost, tips, and common daily calculations.
Free Date and Time Tools
Free date and time tools for planning schedules, deadlines, events, workdays, time zones, and calendar calculations. Calculate date differences, add or subtract days, count business days, convert time zones, check week numbers, and estimate countdowns. These tools are useful for project planning, travel coordination, content calendars, and everyday scheduling.
Free Online Developer Tools
Free online developer tools for working with structured data, code snippets, encoding, decoding, formatting, and validation. Use these browser-based utilities to clean JSON, check XML, convert data formats, test strings, and speed up everyday development tasks.
Free SEO & Webmaster Tools
Free SEO and webmaster tools for improving how pages are described, crawled, and previewed online. Generate meta tags, create robots.txt rules, build schema markup, preview Open Graph metadata, and prepare website SEO elements without needing a complex SEO platform.
Hash & Checksum
Browse hash & checksum and find related browser-based tools quickly.
Free Online Image Tools
Free online image tools for everyday image editing tasks. Resize pictures, compress image files, crop photos, rotate or flip images, and prepare images for websites, forms, social media, and sharing. Many image tools run directly in your browser, helping you work quickly without installing editing software.
Math Tools
Browse math tools and find related browser-based tools quickly.
Free Finance Calculators
Free finance calculators for everyday estimates, planning, and quick comparisons. Estimate salary and hourly pay, calculate loan payments, compare interest scenarios, check discounts, review gross margin, and explore simple finance questions without a spreadsheet. Results are designed for reference only and should not be treated as financial, tax, legal, or investment advice.
Free Marketing Calculators
Free marketing calculators for quick campaign math and creator planning. Calculate CPC, CPM, CTR, CPA, ROAS, YouTube earnings estimates, and related advertising metrics without building a spreadsheet. These tools help marketers, creators, and small businesses sanity-check numbers, compare scenarios, and explain formulas clearly.
Free Random Tools
Free random tools for quick selections, shuffling, ordering, number generation, passwords, and everyday decisions. Generate random numbers, pick winners from a list, sort names randomly, create passwords, and handle small randomization tasks directly in the browser. These tools are useful for classroom activities, giveaways, team ordering, testing, and lightweight decision-making.
Health Calculators
Browse health calculators and find related browser-based tools quickly.
Free Social Media Tools
Free social media tools for creators, marketers, and editors preparing posts, captions, images, and thumbnails. Count Instagram or Threads text, review hashtags and mentions, check common image size guidance, and plan social media assets before publishing. Platform rules can change, so use these tools as practical references rather than official platform guarantees.
All tools
Search by tool name, slug, keyword, category, or subcategory. Results use English tool content and link to English tool pages.
150 Tools
Free Online Text Tools
CategoryFree Unit and Utility Converters
CategoryFree Date and Time Tools
CategoryFree Online Developer Tools
CategoryFree SEO & Webmaster Tools
CategoryHash & Checksum
CategoryFree Online Image Tools
CategoryMath Tools
CategoryFree Finance Calculators
CategoryFree Marketing Calculators
CategoryFree Random Tools
CategoryHealth Calculators
CategoryFree Social Media Tools
CategoryWhy use 123EasyTools?
123EasyTools is static, fast, mobile-friendly, and designed around tools first. It helps you finish everyday calculations, conversions, text cleanup, developer tasks, image work, and SEO checks without signing in.
Are 123EasyTools tools free? +
Yes. 123EasyTools is a free online tools platform for calculators, converters, text utilities, developer tools, image tools, and SEO helpers.
Do the tools run in my browser? +
Most tools run directly in your browser. Image tools process files locally in the browser and do not need a backend upload step.
Which language should I use? +
Use this global homepage for English. Traditional Chinese, Simplified Chinese, Japanese, and Spanish versions are available from the language switcher.
Do I need an account? +
No. You can search, open, favorite, and reuse tools without signing in.