Tools ecosystem

Free tools for freelancers, founders & modern businesses.

Convert PDFs, generate invoices, compress files, calculate VAT, and automate daily workflows.

PDF & filesBusiness mathSEO & growth

BusinessInvoice GeneratorCreate a free PDF invoice online — add clients, VAT, payment terms, and download instantly.

Popular

PDFPDF to JPGConvert PDF pages to high-quality JPG images.

Popular

PDFCompress PDFReduce PDF size for sharing and upload.

Popular

BusinessVAT CalculatorCalculate VAT, totals, and reverse charge hints.

Popular

MarketingQR Code GeneratorCreate QR codes for URLs, Wi-Fi, payments, vCards, and SMS — download PNG or SVG.

Popular

MarketingBio GeneratorWrite short professional bios for LinkedIn, websites, and social profiles.

BusinessBurn Rate CalculatorCalculate startup burn rate, runway, and months until next funding round.

BusinessCAC / ROI CalculatorCalculate customer acquisition cost and marketing ROI from spend and revenue.

MarketingCaption GeneratorWrite social media captions for products, services, and announcements.

MarketingCold Email GeneratorGenerate cold email templates for B2B outreach, sales, and partnerships.

DeveloperColor ConverterConvert HEX, RGB, HSL, and CMYK values for design and front-end work.

DeveloperColor Palette GeneratorGenerate accessible color palettes for brands, UIs, and marketing graphics.

DeveloperContrast CheckerCheck color contrast against WCAG AA and AAA accessibility thresholds.

SEODomain Age CheckerFind a domain’s registration date, age, and last update for SEO research.

MarketingEmail ValidatorCheck if an email address is correctly formatted and deliverable before you send.

BusinessExpense ManagerTrack expense claims and export for accounting.

BusinessFreelance Rate CalculatorHourly and daily rates from goals and expenses.

MarketingHashtag GeneratorFind relevant hashtags for Instagram, TikTok, and X based on your topic or niche.

New

MarketingHeadline AnalyzerScore headlines for length, emotion, power words, and click-through potential.

PDFJPG to PDFTurn JPG images into a single PDF.

DeveloperJSON to CSV ConverterConvert JSON arrays and nested objects into clean CSV — flatten keys and preview rows.

Fast

SEOKeyword Density CheckerAnalyze keyword density and topic coverage in a page or article.

BusinessLTV CalculatorCalculate customer lifetime value from churn, average revenue, and retention.

DeveloperMarkdown ConverterConvert Markdown to clean HTML — preview, copy, and download in one step.

SEOMeta Tag CheckerAudit a page’s meta title, description, Open Graph, and canonical tags for SEO.

DeveloperPassword Strength CheckerTest how strong a password really is — entropy, crack time, and improvement tips.

BusinessPayment ReminderCreate ready-to-send payment reminder emails.

PDFPNG to WebPOptimize PNG images for the web.

MarketingPosting Time CalculatorFind the best times to post on Instagram, TikTok, and LinkedIn for your audience.

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LegalPrivacy Policy GeneratorGenerate a tailored privacy policy for your site or app — GDPR-aware, free to download.

SEOReadability CheckerScore readability with Flesch, grade-level, and sentence-length analysis.

BusinessSaaS Pricing CalculatorModel SaaS pricing tiers and project MRR from seat counts and conversion rates.

SEOSSL CheckerVerify a site’s SSL certificate, expiry date, and chain configuration.

DeveloperTimestamp ConverterConvert Unix timestamps to readable dates across timezones and formats.

MarketingUsername GeneratorGenerate available username ideas across platforms — easy to remember, easy to claim.

MarketingViral Hook GeneratorGenerate scroll-stopping hooks for short-form video and social posts.

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SEOWebsite Speed TestCheck a URL’s load time, Core Web Vitals, and performance score in one click.

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DeveloperWord CounterCount words, characters, sentences, and reading time for any text — paste and see stats live.

Fast

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