🌐 Webmaster Tools

20 free webmaster tools for URLs, domains, HTML, metadata, links, browser information and website development.

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Calculator & SEO Tools

35 Free Online Tools — Tools 56–90

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56. Percentage Calculator

Calculate a percentage of a number.

Percentage Number

57. Percentage Increase / Decrease

Calculate the percentage change between two values.

Original Value New Value

58. Average Calculator

Calculate the average of multiple numbers.

Numbers

59. Discount Calculator

Calculate discount and final price.

Original Price Discount %

60. Tip Calculator

Calculate tip and total bill.

Bill Amount Tip %

61. VAT / Tax Calculator

Calculate VAT or tax on a price.

Price VAT / Tax %

62. Profit Margin Calculator

Calculate profit and profit margin.

Cost Price Sale Price

63. Simple Interest Calculator

Calculate simple interest.

Principal Annual Interest % Time in Years

64. Compound Interest Calculator

Calculate compound interest.

Principal Annual Rate % Years Compounds Per Year

65. Loan Payment Calculator

Estimate monthly loan payments.

Loan Amount Annual Interest % Term in Months

66. BMI Calculator

Calculate BMI from height and weight.

Weight (kg) Height (cm)

67. Age Calculator

Calculate age from date of birth.

Date of Birth

68. Date Difference Calculator

Calculate the number of days between two dates.

Start Date End Date

69. Time Calculator

Add two times together.

Time 1 Time 2

70. Unit Converter

Convert length, weight and temperature.

Value From To

71. Meta Title Generator

Generate an SEO-friendly meta title.

Topic Brand

72. Meta Description Generator

Generate an SEO-friendly meta description.

Topic Keywords / Benefits

73. SEO Keyword Generator

Generate related keyword ideas.

Seed Keyword

74. Keyword Density Checker

Check keyword frequency and density.

Text Keyword

75. Slug Generator

Convert a title into a clean URL slug.

Title

76. Robots.txt Generator

Generate a basic robots.txt file.

Sitemap URL Disallow Path

77. Sitemap Generator

Create an XML sitemap from URLs.

URLs — one per line

78. Open Graph Meta Tag Generator

Generate Open Graph tags.

Title Description URL Image URL

79. Twitter Card Generator

Generate Twitter/X card meta tags.

Title Description Image URL URL

80. Schema Markup Generator

Generate JSON-LD structured data.

Schema Type Name URL

81. FAQ Schema Generator

Generate FAQPage JSON-LD schema.

Question | Answer — one per line

82. Article Schema Generator

Generate Article JSON-LD.

Headline Author Publisher Article URL

83. Breadcrumb Schema Generator

Generate BreadcrumbList JSON-LD.

Name | URL — one per line

84. Canonical URL Generator

Generate a canonical link tag.

Canonical URL

85. H1–H6 Heading Checker

Check heading structure from HTML.

HTML

86. SEO Word Counter

Count words, characters, sentences and paragraphs.

Content

87. Readability Checker

Estimate readability using Flesch Reading Ease.

Content

88. Keyword Extractor

Find frequently used meaningful words.

Text

89. SERP Snippet Preview

Preview a Google-style search result.

Title URL Description

Your title

https://example.com/page

Your search description will appear here.

90. SEO Content Outline Generator

Generate an SEO-friendly article outline.

Main Topic Audience

AI Vision Pro

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20 Free Webmaster Tools – URL, Meta, Sitemap & Website Tools