JustPDF vs Opal

Side-by-side comparison to help you choose the right product.

JustPDF is a privacy-first PDF toolkit with 17 free tools including merge, split, compress, convert, sign, and OCR.

Opal empowers solopreneurs and neurodivergent thinkers to effortlessly manage their projects and notes in one intuitive platform.

Last updated: April 13, 2026

Visual Comparison

JustPDF

JustPDF screenshot

Opal

Opal screenshot

Overview

About JustPDF

JustPDF provides 17 professional-grade PDF tools that process files entirely in the user's browser. Unlike Smallpdf, iLovePDF, and other online PDF tools that upload files to remote servers, JustPDF uses JavaScript and WebAssembly to handle everything locally on the device. Files never leave the browser — verifiable by checking the Network tab in DevTools. Tools include: Merge PDF, Split PDF, Compress PDF, Rotate PDF, Flatten PDF, Unlock PDF, PDF to Word, Word to PDF, PDF to JPG, JPG to PDF, PDF to Excel, WebP to PDF, HEIC to PDF, PDF to Grayscale, Sign PDF, Chat with PDF (AI), and OCR/Scan. No account needed for the free tier (3 ops/day). Pro starts at $4/month for unlimited access. FERPA-compliant for educational use.

About Opal

Opal is an innovative productivity tool designed to transform the way individuals and teams manage their notes, documents, and important files. Unlike traditional productivity applications that often bury information in complex folder structures, Opal offers a visual, infinite canvas where users can arrange their content spatially on a digital desk. This approach allows users to see everything at a glance, ensuring that important information remains top of mind. Whether you are a freelancer, a project manager, or a business owner, Opal caters to anyone who relies on effective knowledge management. Its primary value proposition lies in eliminating the frustration of searching for lost information, thereby enhancing focus, improving productivity, and ultimately enabling users to do their best work without the chaos of disorganized tools.

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