Essential Free Tools for Students & Researchers
Compress research papers to portal limits, merge assignment PDFs, convert image notes to text, and calculate GPAs with zero subscriptions or watermarks.
Curated Tool Collection (7)
PDF Compressor
Free, private browser-based PDF compressor. Reduce PDF file size toward a target KB or MB with zero file server uploads and no watermarks.
JPG to PDF Converter
Merge multiple JPG, PNG, and WebP images into a single clean PDF document offline in your browser.
Image to Text (OCR)
Extract text from photos, scanned receipts, book pages, and documents locally in your browser with zero server uploads.
College GPA & CGPA Calculator
Calculate college semester GPA and cumulative CGPA across USA 4.0 scale, Indian 10-point scale, and UK Degree Honours classifications.
Word & Character Counter
Analyze text statistics: word count, character count, sentences, paragraphs, and reading time.
AI Paraphraser & Sentence Rewriter
Paraphrase essays, rewrite articles, and enhance sentence fluency in 4 writing styles with zero server uploads.
Percentage Calculator
Calculate percentages, percentage increase/decrease, and percentage differences with PDF summary reports.
Recommended Step-by-Step Workflow
Extract & Merge Assignment Sheets
Combine multiple lecture slides and textbook photos into a single indexed PDF using JPG to PDF and PDF Merge.
Compress Below University Portal Limits
Reduce your PDF file size to 100KB, 200KB, or 500KB thresholds required by Canvas, Blackboard, or UPSC.
Paraphrase & Check Readability
Enhance academic vocabulary and sentence fluency with our client-side AI Paraphraser and Grammar Checker.
Frequently Asked Questions
Can university portals detect if I used NexVaani?
No. NexVaani does not watermark, alter metadata, or add hidden markers to your exported PDFs or documents.
Is it completely free for students?
Yes. Every tool is 100% free forever without requiring institutional email verification or account creation.