Niva Tools Guides
Browse clear tutorials that explain how to use online utilities safely and effectively. Each guide connects to a free Niva Tools workflow.
Guide
Learn how to crop, resize and compress JPG, PNG or WebP images locally in the browser for forms, blogs and SEO pages.
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Learn how to create local QR codes for restaurant menus, guest Wi-Fi, PNG/SVG print materials and scan-safe sharing.
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Understand when to use JPG, PNG or WebP and how to choose the right output format for websites, forms and everyday sharing.
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Learn how to merge PDF files, split pages, rotate documents and review browser-side PDF results before sharing.
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Learn practical ways to count words, change case, remove duplicate lines, generate slugs and clean copied text for everyday work.
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Learn how freelancers can create a browser-based invoice PDF, review totals and download the file without creating an account.
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