JustPDF vs Opal

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

JustPDF

Free, private PDF tools in your browser.

Opal logo

Opal

Opal transforms your creative chaos into clarity, keeping every job, client, note, and idea organized on one intuitive screen.

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 a revolutionary productivity tool designed to combat the chaos of traditional note-taking and file management systems. Unlike conventional apps that rely on folders and categories, Opal provides a vast, visual workspace where users can arrange their notes, documents, and files on an infinite canvas. This unique approach allows users to see everything in one glance, ensuring that critical information is always at their fingertips. Whether you are a freelancer managing multiple clients, a project manager overseeing tasks, or a content creator developing ideas, Opal is tailored for anyone who needs to keep track of numerous details and projects simultaneously. Its main value proposition lies in its ability to boost productivity by eliminating the frustration of searching for information, ultimately allowing you to focus on what truly matters—your work.

Continue exploring