Tools
Free tools for marketers: build campaign URLs with UTM tags, inspect the parameters of any link and encode or decode URLs.
URL & Campaign Tools
Build, parse and clean up campaign links and their parameters.
UTM Builder
Create links with UTM tags: fill in the fields and get a ready-to-use campaign URL.
Open tool →UTM Parser
Paste a ready link and see every UTM tag and query parameter it carries.
Open tool →URL Encoder / Decoder
Convert special characters to percent-encoding and back - for any URL or parameter.
Open tool →Redirect Checker
Trace the full redirect chain of a URL - every hop and status code up to the final page.
Open tool →URL Parameter Editor
Add or remove GET query parameters on any URL - paste, edit and copy the result.
Open tool →Tracking & Postback Tools
Generate and test conversion pixels, postbacks, click IDs and macros.
Conversion Pixel Generator
Generate a conversion pixel - image tag, JS snippet or S2S postback URL - with parameters.
Open tool →Pixel Validator
Fire a tracking pixel and check whether the request is sent and works.
Open tool →Postback URL Builder
Build a server-to-server postback URL with parameters and macros like {clickid} and {payout}.
Open tool →Postback Tester
Send a test conversion to a postback URL and see the HTTP status and response body.
Open tool →Click ID Generator
Generate random click IDs like a82f93ba11993 for testing tracking and postbacks.
Open tool →Macro Preview
Preview how macros like {clickid} are replaced in a tracking or postback URL.
Open tool →Ad Metrics Calculators
Work out CPM, CPC, CTR, CPA, ROAS, ROI and more from your campaign numbers.
CPM Calculator
Calculate CPM (cost per 1,000 impressions) from ad spend and impressions.
Open tool →CPC Calculator
Calculate CPC (cost per click) from ad spend and number of clicks.
Open tool →CTR Calculator
Calculate CTR (click-through rate) from clicks and impressions.
Open tool →CPA / CPL Calculator
Calculate CPA (cost per acquisition) or CPL (cost per lead) from spend and conversions.
Open tool →ROAS Calculator
Calculate ROAS (return on ad spend) from revenue and ad spend.
Open tool →ROI Calculator
Calculate marketing ROI and net profit from revenue and cost.
Open tool →eCPM Calculator
Calculate eCPM (effective revenue per 1,000 impressions) from revenue and impressions.
Open tool →EPC Calculator
Calculate EPC (earnings per click) from total earnings and clicks.
Open tool →Conversion Rate Calculator
Calculate conversion rate (CR) from conversions and clicks or visitors.
Open tool →Ad Budget & Spend Pacing Calculator
Split a total budget into a daily budget and estimate clicks from CPC.
Open tool →A/B Test Significance Calculator
Check whether two variants differ significantly (two-proportion z-test, 95%).
Open tool →Content & Marketing Tools
QR codes, spintax, slugs, word counts and meta tags for your campaigns and pages.
QR Code Generator
Turn any link or text into a QR code and download it as PNG or SVG.
Open tool →Spintax Generator & Tester
Write spintax and generate unique variations of your ad copy or messages.
Open tool →Slug Generator
Turn titles into clean, SEO-friendly URL slugs - one or a whole list at a time.
Open tool →Word & Character Counter
Count words, characters, sentences and reading time, and check SEO/ad limits.
Open tool →Meta Tag & Open Graph Generator
Generate title, description, Open Graph and Twitter Card meta tags for a page.
Open tool →Network & Domain Tools
Inspect headers, redirects, DNS, WHOIS, SSL, IPs and user agents.
HTTP Header Checker
Check the response status, content type, server, cache, cookies and security headers of any URL.
Open tool →IP Lookup
Find the country, city, ASN and provider behind any IP address (or your own).
Open tool →User-Agent Parser
Decode a User-Agent into browser, OS, engine, device type, brand and model.
Open tool →DNS Lookup
Check the A, AAAA, CNAME, MX and TXT DNS records of any domain.
Open tool →Whois Lookup
Find the registrar, owner, registration dates and name servers of any domain.
Open tool →SSL Checker
Check a website’s SSL/TLS certificate - validity, issuer and expiry date.
Open tool →Geo IP Tester
See which country websites detect you from, based on your IP address.
Open tool →Image Tools
Compress and convert creatives right in your browser.
Developer Utilities
Encode, format, validate and generate common developer data.
Base64 Encoder
Encode text to Base64 and back - hello ↔ aGVsbG8=.
Open tool →Base32 Converter
Encode text to Base32 (RFC 4648) and back.
Open tool →Base36 Converter
Convert a decimal number to Base36 and back - 1234567890 ↔ kf12oi.
Open tool →JSON Formatter
Pretty-print or minify JSON with your chosen indentation.
Open tool →JSON Validator
Check JSON for errors, with the exact line and column of any problem.
Open tool →CSV ⇄ JSON
Convert a CSV table to JSON and back - the first row is the header.
Open tool →HTML Encoder
Escape special characters to HTML entities and back - < ↔ <.
Open tool →Regex Tester
Test regular expressions with live match highlighting, capture groups and a replace preview.
Open tool →Hash Generator
Generate MD5, SHA-1, SHA-256 and SHA-512 hashes of any text.
Open tool →UUID Generator
Generate random RFC 4122 v4 UUIDs - one or many at once.
Open tool →Unix Timestamp Converter
Convert a Unix timestamp to a human date and back.
Open tool →JWT Decoder
Decode a JWT to read its header, payload, claims and expiry.
Open tool →Diff / Text Compare
Compare two texts line by line and see what was added and removed.
Open tool →Cron Expression Parser
Explain a cron expression field by field and show the next run times.
Open tool →Color Converter
Convert a colour between HEX, RGB and HSL with a live preview.
Open tool →Text Case Converter
Convert text between UPPERCASE, camelCase, snake_case, kebab-case and more.
Open tool →JSON ⇄ YAML Converter
Convert JSON to YAML and YAML to JSON, with validation.
Open tool →Lorem Ipsum Generator
Generate Lorem Ipsum placeholder text by paragraphs, sentences or words.
Open tool →Password Generator
Generate strong, random passwords with a secure random source.
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