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Tools for SEO and development
38 tools from a practising agency. We use them ourselves every day — now available to you.
Categories
🔍
SEO Tools
Site analysis and search optimisation. SERP preview, meta tags, technical audit.
8 tools
✍️Content Tools
Text analysis and processing. Character counter, readability checker, keyword density.
4 tools
⚙️Development Tools
CSS generators, format converters and utilities for front-end developers.
15 tools
📊Marketing Tools
UTM builder, QR codes, Open Graph preview and other tools for marketers.
2 tools
💼Business Calculators
ROI, conversion and budget calculators. Measure the effectiveness of SEO and marketing.
8 tools
⚖️Legal Compliance
Check your site for formal compliance with Russian personal data, consumer protection, and advertising law.
1 tool
Popular
SEOPopular
SERP Preview
See how your page will appear in Yandex and Google search results before publishing.
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Marketing
UTM Builder
UTM parameter generator for tracking traffic sources in Yandex.Metrica and Google Analytics.
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Business
SEO ROI Calculator
Calculate SEO payback: how many leads and how much revenue organic traffic will generate at your budget.
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All tools
SEOPopular
SERP Preview
See how your page will appear in Yandex and Google search results before publishing.
Open →
SEO
Robots.txt Generator
Generate a valid robots.txt for your website: configure the options and copy the ready-to-use file.
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SEOPopular
Meta Tags Generator
Fill in the fields — get ready-made HTML meta tag code with Open Graph and Twitter Card.
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SEOJSON-LD
Schema.org Generator
Generate JSON-LD markup for Google and Yandex without knowing the schema spec. LocalBusiness, Article, FAQ, Product — fill in the fields and get ready-to-use code to insert into your head section.
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SEOSEO
Keyword Density
Paste your text and get the top 25 words by frequency, density as a percentage, and overall statistics. Helps avoid over-optimizing your page.
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Marketing
UTM Builder
UTM parameter generator for tracking traffic sources in Yandex.Metrica and Google Analytics.
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Content
Character Counter
Count characters, words, sentences, and reading time. Essential for crafting titles, meta descriptions, social posts, and articles.
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Business
SEO ROI Calculator
Calculate SEO payback: how many leads and how much revenue organic traffic will generate at your budget.
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Business
A/B Test Calculator
Check whether your A/B test has reached statistical significance. Enter variant data and get the p-value.
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DevNew
CSS Gradient
Create linear and radial CSS gradients visually and copy the ready-to-use code.
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Dev
JSON Formatter
Format, minify, and validate JSON directly in your browser. No installation, no sign-up required.
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Dev
Base64
Encode and decode text to and from Base64 directly in the browser. Full support for Cyrillic and UTF-8.
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Dev
.htaccess Redirect Generator
Enter old URL → new URL pairs and get ready-to-use rules for Apache .htaccess. Supports 301, 302, and 307 redirects in two formats: Redirect and RewriteRule.
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Dev
URL Encode / Decode
Encode or decode URLs and query strings. Supports encodeURIComponent for parameter values and encodeURI for full addresses.
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Dev
Colour Contrast Checker
Enter your text and background colors to get the contrast ratio and WCAG 2.1 compliance status (AA and AAA) for normal and large text.
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ContentSMM
Social Media Counter
Paste your text and instantly see whether it fits within the limits for VKontakte, Telegram, Twitter/X, LinkedIn, and Instagram. All platforms — simultaneously.
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MarketingEmail
Email Subject Line
Enter your subject line — get a length score, a live preview in four email clients (Gmail, Outlook, Apple Mail), and a spam trigger warning.
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SEOi18n
hreflang Generator
Specify language versions of your pages and get ready-to-use hreflang tags for the <head> or attributes for XML Sitemap. Supports x-default and any language.
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DevCSS
CSS Box Shadow
Configure shadows visually — sliders for offset, blur, color, and opacity. Supports multiple shadow layers and comes with presets for popular styles.
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Dev
Password Generator
Generate strong passwords using a cryptographically secure random generator. Configure length and character composition — get a strength rating in entropy bits.
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SEOOG
OG Preview
Check how a link to your page looks when shared on VKontakte, Telegram, Facebook, and X (Twitter). Enter your OG data and see the card without publishing.
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Business
Margin Calculator
Calculate margin, markup, and profit in seconds. Enter cost and selling price — or set your target margin to find the right selling price.
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Content
Readability Checker
Check how easy your text is to read. The tool shows average sentence length, percentage of complex words, estimated reading time, and an overall readability score.
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DevRegExp
Regex Tester
Test regular expressions in the browser in real time. Match highlighting, captured groups list, flags g i m s — all in one tool.
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DevCSS
Colour Palette
Choose a base color and get a harmonious palette: monochromatic, analogous, complementary, or triadic. Copy HEX codes in one click.
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DevUnix
Unix Timestamp
Convert Unix timestamps to dates and back. Shows current time, supports seconds and milliseconds, outputs 8 formats simultaneously.
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Business
Sales Funnel
Build your sales funnel: enter the number of leads at each stage and the calculator will show stage-to-stage conversion rates, overall funnel efficiency, and customer acquisition cost.
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Content
Text Diff
Compare two texts and find every difference. Highlights added and deleted words, shows change statistics. Ideal for proofreading edits and reviewing revisions.
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DevJSON
JSON to CSV
Convert a JSON array to a CSV table directly in your browser. Automatically detects columns, supports nested objects, delimiter selection, and file download.
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DevCSS
Type Scale
Build a harmonious font-size system based on musical intervals. Choose a base size and a ratio — get CSS custom properties for your entire typographic scale.
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SEO
Heading Structure
Paste your page HTML and get a visual H1–H6 heading tree. The tool detects SEO errors: missing H1, skipped heading levels, and duplicate H1 tags.
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Business
Break-Even Calculator
Calculate your break-even point: how many units you need to sell and what revenue you must generate to cover all costs. Shows profit at different sales volumes.
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DevCSS
Border-radius
Create custom shapes with 8-value CSS border-radius. Sliders, blob presets, live preview — and ready-to-copy CSS in one click.
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DevDEV
Number Base Converter
Convert numbers between decimal, binary, hexadecimal, and octal. Displays bitwise representation and byte grouping.
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Business
LTV Calculator
Calculate customer lifetime value (LTV): average order value, purchase frequency, retention period, and margin. Shows the LTV/CAC ratio and acquisition efficiency score.
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Business
Factor Analysis
Enter your current business metrics, set a realistic growth potential for each — the tool will show which metric improvement delivers the greatest financial result.
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Business
Channel Analyser
Add your advertising channels, enter budget, traffic, and conversions — the tool will show profit, ROI, and CPO for each channel and identify the most effective one.
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LegalNEW
Legal Compliance Check
Free automated check of your website for formal compliance with Russian law: personal data processing, consumer rights, content and advertising marking.
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Need a full SEO audit?
Tools help with targeted tasks. For systematic growth — request a free review of your site.