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AI Tools
3 tools
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AI
Free AI Content Cleaner
Free AI content cleaner. Remove robotic AI writing patterns, humanize text, fix passive voice, eliminate filler words, improve readability and bypass AI detectors.
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AI
Free AI Prompt Builder
Free AI prompt builder. Generate perfect prompts for ChatGPT, Claude, Gemini and Midjourney instantly. Choose role, tone, format and task — build powerful AI prompts in seconds. No sign-up.
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AI
Free AI SEO Meta Tag Writer
Free AI SEO meta tag writer. Generate optimized title tags and meta descriptions for any page type instantly. No sign-up required.
SEO Tools
2 tools
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NEW
Free Broken Link Checker
Free broken link checker. Paste your page content or URL list to instantly find broken links, redirects, missing alt text and get a full link health report. No signup required.
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NEW
FAQ Schema Generator
Free FAQ schema generator. Create valid FAQ JSON-LD structured data for Google rich results instantly. Paste your questions and answers and get schema markup ready to copy. No sign-up required.
Email Tools
4 tools
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HOT
Email Extractor
Free online email extractor. Paste any text, HTML, or webpage content and instantly extract all email addresses. Remove duplicates automatically. No sign-up required.
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NEW
Email List Cleaner
Free online email list cleaner tool. Instantly remove duplicate emails, invalid addresses, and role-based emails (info@, admin@). No sign-up. 100% browser-based. Boost email deliverability now.
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FREE
Email Preheader Generator
Free Email Preheader Generator: Create compelling preheader text for your campaigns. Live stats, character counter, copy & download. Improve email open rates.
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FREE
Email Preheader Generator
Free Email Preheader Generator: Create compelling preheader text for your campaigns. Live stats, character counter, copy & download. Improve email open rates.
Marketing Tools
1 tool
Text Tools
4 tools
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FREE
Free Case Converter
Free online case converter tool. Convert text to UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case, kebab-case, PascalCase and more instantly.
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FREE
Extract Numbers from Text Online Free
Free online tool to extract all numbers from any text instantly. Extract integers, decimals, negative numbers, phone numbers, prices, and more. Download as CSV or TXT. No sign-up required.
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FREE
Find and Replace Text Online Free
Free online find and replace text tool. Replace single or multiple words, phrases, or patterns in any text instantly. Supports regex, case-sensitive search, and bulk replacements. No sign-up required.
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FREE
Free Lorem Ipsum Generator
Free lorem ipsum generator. Generate paragraphs, sentences or words of placeholder text instantly. Classic Lorem Ipsum, random words, HTML format and more.
Developer Tools
4 tools
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FREE
CIDR to IP Range Generator Online Free
Free online CIDR to IP range calculator. Convert any CIDR notation to its full IP range, network address, broadcast address, subnet mask, and total host count. Supports IPv4. No sign-up required.
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FREE
Free Cron Expression Generator
Free online cron expression generator. Build cron schedules visually, get human-readable descriptions, see next run times and copy ready-to-use crontab syntax. No sign-up required.
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FREE
Free HTML Encoder & Decoder
Free online HTML encoder and decoder. Convert special characters to HTML entities and decode HTML entities back to text instantly. Supports named entities, numeric, hex and full encoding modes. No sign-up required.
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FREE
Free JSON Formatter & Validator
Free online JSON formatter, validator and minifier. Paste your JSON to instantly beautify, validate, minify, and explore with a collapsible tree view. No sign-up required.
Other
1 tool
API BLK TOOLS — Free Tools That Just Work
Every tool is 100% free, runs entirely in your browser and requires zero signup. No paywalls, no credit limits, no installs.
Built for marketers, developers and automation builders who need fast, private, reliable tools every day.
⚡ Instant Results
Every tool runs in your browser with zero server wait time.
🔒 100% Private
Your data never leaves your device. No tracking, no logging.
📱 Mobile Ready
Every tool is fully responsive and works perfectly on phones.
🆓 Always Free
No freemium limits. Every feature of every tool is completely free.