Quick online utilities for marketers, SEO specialists, and developers. Every tool runs right in your browser — your data never leaves the page.
67 tools · all run in the browser, no data is sent to a server
Counters, cleanup, and text transformations
Characters with and without spaces, words, sentences, paragraphs, and reading time — as you type.
Case Converterlowercase, UPPERCASE, Title Case, Sentence case, and camelCase / snake_case for code.
Text CleanerExtra spaces, empty lines, line breaks, and invisible characters — gone in one click.
URL Slug GeneratorTransliterate any text — Cyrillic included — into a clean, URL-ready slug.
Find and ReplaceReplace every occurrence — case-sensitive, whole words, or with regex.
Email, URL, and Phone ExtractorPull emails, URLs, domains, phone numbers, and numbers out of any text.
Typography FixerSmart quotes, em dashes, non-breaking spaces, and symbols — set by typographic rules.
Text Compare (Diff)Line-by-line comparison: what was added, what was removed, and a similarity score.
Dedupe, sort, and run bulk operations on lists
Clean repeated lines from a list — case- and whitespace-sensitive or not.
Sort LinesAlphabetically, numerically, by length, in reverse — or shuffled.
Add Prefix and Suffix to LinesAdd text to the start and end of every line: quotes, commas, tags.
Compare Two ListsIntersection, differences, and a deduplicated union of two lists.
Column ↔ Comma-Separated ListJoin a column into one comma-separated line or split it back.
Filter LinesKeep or remove lines by keywords, line start, line end, or regex.
Parse, clean, and build links
Encode and decode URLs and query parameters (percent-encoding).
URL ParserProtocol, domain, path, port, and a table of query parameters.
UTM RemoverStrip utm_*, gclid, fbclid, and other tracking junk from a list of links.
UTM BuilderBuild tagged links with presets for Google Ads, social media, and email.
Base64, hashes, and passwords — everything computed in your browser
Encode and decode Base64 with full Unicode (UTF-8) support.
Hash GeneratorMD5, SHA-1, SHA-256, SHA-512, and CRC32 for any string — in your browser.
Password GeneratorStrong passwords with configurable length and character sets.
JWT DecoderDecode a token: header, payload, claims, and expiry dates.
HTML Entities Encode / DecodeSpecial characters and Unicode to HTML entities — and back.
UUID GeneratorUUID v4 and v7 in bulk — with formatting options.
String EscaperYour string escaped for JS, JSON, PHP, SQL, HTML, and regex — quotes included.
Random Number GeneratorNumbers in any range — unique, sorted, or both.
Format and validate your data
Format, minify, and validate JSON with the exact error location.
JSON ↔ CSV ConverterAn array of objects to a CSV table and back, with delimiter options.
JSON ↔ YAML ConverterConfigs from JSON to YAML and back — with syntax validation.
Markdown Table GeneratorTables for README and docs from CSV/TSV — and back again.
XML Formatter and ValidatorFormat and validate XML with a clear error message.
JSON → TypeScriptTypeScript interfaces from a JSON sample — nesting included.
JSON → SQL INSERTAn array of objects into ready INSERT statements for MySQL and Postgres.
Timestamps and time format conversion
IP addresses, number bases, and data sizes
Network, mask, host range, and host count from CIDR.
Number Base ConverterBinary, octal, decimal, hex, and any base up to 36.
Data Size ConverterBytes, KB, MB, GB — and download time at your speed.
HTTP Status Codes ReferenceEvery response code with a plain-English explanation and SEO notes.
MIME Types ReferenceMIME types by file extension — searchable, copy in one click.
Ad metrics and payback
All the core ad metrics from budget, impressions, clicks, and leads.
ROAS, ROI, and ROMI CalculatorAd payback: ROAS, ROMI, profit, and the break-even point.
A/B Test CalculatorStatistical significance of results and sample size for your experiment.
CAC and LTV CalculatorAcquisition cost, lifetime value, and the LTV:CAC ratio.
Email Metrics CalculatorDelivery, open rate, CTR, CTOR, and unsubscribes from your send stats.
Markup and Margin CalculatorMarkup, margin, and the biggest discount you can give without a loss.
Percentage CalculatorPercent of a number, share as a percent, and percentage change.
CAGR CalculatorCompound annual growth rate and a projection based on it.
Statistics CalculatorMean, median, standard deviation, and percentiles from a list of numbers.
Snippets, meta tags, and page preparation
Character and pixel counts with a live Google snippet preview.
Word Frequency CounterTop words, bigrams, and trigrams in a text — with a stop-word filter.
Robots.txt GeneratorBuild a robots.txt: disallow rules, ready presets, and a sitemap link.
XML Sitemap GeneratorPaste your URLs — get a ready-to-upload sitemap.xml file.
Open Graph GeneratorMeta tags for social networks and messengers, with a card preview.
Hreflang GeneratorLanguage-version tags for your pages — with no errors in the codes.
Robots.txt TesterIs a URL allowed or blocked — by the rules of your robots.txt.
Keyword CombinerEvery 'service × city' combination, plus {buy|order} templates.
Negative Keyword FilterClean a query list with negative keywords — the way ad platforms do.
Keyword Density CheckerHow often your keyphrase appears in a text — and whether it's overused.
301 Redirect GeneratorOld-to-new URL pairs turned into .htaccess and Nginx rules.
JSON-LD generators for rich snippets
Questions and answers turned into FAQPage markup for rich snippets.
Breadcrumb Schema (JSON-LD)BreadcrumbList from your page chain — ready-to-paste code.
Product Schema (JSON-LD)Product markup with price, availability, and rating.
Organization Schema (JSON-LD)Organization markup: contacts, logo, and social profiles.
LocalBusiness Schema (JSON-LD)Local business markup: address, opening hours, and coordinates.
Article Schema (JSON-LD)Article markup: author, publisher, and publication dates.
We'll collect and tidy up website data: prices, products, contacts, reviews — in the format and at the frequency you need.