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Best Free Alternatives to LiquidText 7.x (Live Collaboration)
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Category: Active Reading & Document AnalysisVerified for 2025
Top Recommended Replacements
Sioyek
FREETop Researcher-Centric Alternative
Why we like it
100% free; built specifically for reading technical papers; features 'Portals' to view references without jumping pages; keyboard-driven (Vim-style); lightning fast.
Keep in mind
Steep learning curve (keyboard-heavy); lacks the fluid 'infinite canvas' and ink-drawing feel of LiquidText.
MarginNote 4
Best for Students (Flashcards + Mindmaps)
Why we like it
Converts highlights into mind maps and Anki-style flashcards automatically; superior for memorization-heavy study; works on iPad and Mac.
Keep in mind
The UI is arguably more cluttered/complex than LiquidText; focus is more on 'Study' than 'Synthesis'.
PDF-XChange Editor
FREEBest for Windows Power Users
Why we like it
The fastest PDF engine on Windows; incredible OCR capabilities in the free version; granular control over comments and document properties.
Keep in mind
Strictly a linear document reader; lacks any 'workspace' or 'mind-mapping' functionality; Windows only.
Logseq / Obsidian Canvas
FREEBest for Knowledge Management
Why we like it
Local-first privacy; infinite canvas that supports PDF embeds; links your PDF highlights directly to your 'Second Brain' database; 100% free.
Keep in mind
Not a dedicated PDF reader; requires manual setup to mirror LiquidText's excerpting workflow.
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