Browse all 30 free tools across 6 categories
Encode or decode Base64 strings instantly. Supports text-to-Base64 and Base64-to-text conv
Instantly convert text between uppercase, lowercase, sentence case, title case, camelCase,
Find and replace text instantly with support for regex, case matching, whole word, multi-p
Remove duplicate lines from text instantly. Supports case-insensitive matching, trim white
Remove empty lines, blank lines, whitespace-only lines, and extra spacing from text instan
Reverse your text instantly — reverse characters, flip word order, reverse each word, turn
Sort text lines alphabetically (A-Z, Z-A), numerically, by line length, by column, natural
Compare two texts side-by-side and instantly see differences highlighted. Supports line-le
Repeat text, words, lines, or characters any number of times with custom separators, numbe
Convert text into formatted lists instantly. Supports bullet points, numbered lists, HTML
Trim text by removing leading, trailing, and extra whitespace. Collapse multiple spaces, s
Count words, characters, sentences, and paragraphs in your text instantly. Free online wor
Remove duplicate email addresses from your list instantly. Detect duplicates with case-ins
Preview how your HTML email renders across Outlook, Gmail, Apple Mail, Yahoo Mail, and mob
Check color contrast ratios in your HTML email for WCAG compliance. Analyze background col
Calculate email click-through rate (CTR), click-to-open rate (CTOR), per-link click distri
Preview how your HTML email renders in dark mode across Outlook, Gmail, Apple Mail, and Ya
Test how your HTML email renders on mobile phones, tablets, and desktops. Preview at iPhon
Calculate email open rate, click-through rate, bounce rate, unsubscribe rate, conversion r
Validate email address syntax with advanced regex checks. Detect formatting errors, typos,
Verify email addresses by checking domain existence, MX records, mail server configuration
Analyze your HTML email dimensions: content width, table widths, image sizes, padding, fon
Detect free email providers like Gmail, Yahoo, Outlook, and 400+ others. Classify emails a
Detect role-based email addresses like info@, admin@, support@, sales@, and 80+ other func
Build campaign URLs with UTM parameters for Google Analytics. Supports utm_source, utm_med
Build UTM tracking URLs for Google Analytics. Generate links with utm_source, utm_medium,
Decode and extract UTM parameters from any URL. Analyze campaign tags, batch decode multip