OmniDoc Converter
Convert common documents, web/data formats, spreadsheets and additional file types from one simple interface.
Open tool →Niva Tools directory
Browse the live Niva Tools collection by category. Each workspace is built for fast everyday tasks with clear descriptions, privacy notes and no account requirement.
Document and PDF tools
Convert common files, handle PDF workflows and prepare documents for everyday use.
Convert common documents, web/data formats, spreadsheets and additional file types from one simple interface.
Open tool →Merge PDFs, split or extract pages, rotate documents and create PDF files from images in your browser.
Open tool →Image and creative tools
Crop, compress, convert and create visuals for websites, social media, email and sharing.
Crop images for Instagram, YouTube, TikTok, LinkedIn, Pinterest, profile pictures and custom sizes.
Open tool →Reduce JPG, PNG, WebP and BMP image size with quality and resize controls for web, email and sharing.
Open tool →Convert PNG, JPG, WebP, BMP and static GIF images to practical web formats directly in your browser.
Open tool →Create animated GIFs from static images with frame timing, ordering, resizing and browser-based export.
Open tool →Productivity tools
Create QR codes, clean text and generate simple invoices without installing extra software.
Create QR codes for URLs, text, Wi‑Fi, WhatsApp, email, phone numbers, events and business cards.
Open tool →Count words, change case, remove duplicate lines, generate slugs and clean text in your browser.
Open tool →Create simple downloadable PDF invoices with line items, tax, discounts and browser-first processing.
Open tool →Built to scale
This directory keeps the home page lighter while giving every tool a clear place in the site architecture. New categories such as Word tools can be added later without overloading the main page.
FAQ
Yes. The current Niva Tools collection is free to use and does not require an account.
The tools are designed to be responsive. Some file-heavy tasks may be easier on desktop, especially when working with many files.
Yes. Niva Tools is designed to grow carefully by category, with each new tool receiving its own clear page and workflow.
Use the categorized directory to find document, image, QR, text and invoice tools faster.
Tools plus practical guides
Each Niva Tools utility is supported by explanations, privacy notes, workflow tips and related tools. The goal is to help users understand which tool to choose, what output to expect and how to review results before downloading or sharing files.
For broader tutorials, visit the Guides section. It includes practical articles about image compression, reliable QR codes, image conversion, PDF workflows, text cleanup and simple invoice creation.