Name: Thorium
Author: EDRLab

Thorium

EDRLab·EDRLab.Thorium

A cross platform desktop reading app, based on the Readium Desktop toolkit

Thorium Reader is the EPUB reader of choice for Windows 10 and 11, MacOS and Linux. This EDRLab application is in constant development and aims at becoming a reference for accessing EPUB 3 publications in reflow or fixed-layout format, audiobooks and visual narratives, PDF documents and DAISY 2.02 and 3 accessible ebooks, LCP protected or not. It is localised in a large set of languages, each version offering new locales. Massive efforts are also made to make Thorium Reader highly accessible for visually impaired and dyslexic people.

winget install --id EDRLab.Thorium --exact --source winget

Latest 3.5.1·September 2, 2026

Release Notes

Thorium Desktop reader version 3.5.1 was published on 02 September 2026.

Here are links to the "technical" changelogs:

https://github.com/edrlab/thorium-reader/blob/develop/changelogs/CHANGELOG-v3.5.1.md
https://github.com/edrlab/thorium-reader/compare/v3.5.0...v3.5.1 User-friendly release notes and a blog post are published on the https://www.thoriumreader.com website. Expand the 'Assets' section below to reveal the download links.
Note that the terms x64 and amd64 in the filenames refer to the Intel computer architecture (also sometimes known as x86_64, which includes both Intel and AMD chipsets).
The term arm64 refers to modern ARM hardware including Apple Silicon "M" computers. If in doubt:
Apple users should download the arm64 variant.
Windows / Linux users should download the x64 / amd64 variants, respectively. The application was built automatically on GitHub (Microsoft) servers. The build was recorded here: https://github.com/edrlab/thorium-reader/actions/runs/33608586429

Installer type: `nullsoft`

x64userAD33003C0648B8F8F91CB9368B457701F23B1ED9443B01C94934F756F7ED98FD

x64machineAD33003C0648B8F8F91CB9368B457701F23B1ED9443B01C94934F756F7ED98FD

arm64userE5D6AAD57490DD68FC117CC02F172A6D86CF6777F91689DD710594B0C0FB1D8F

arm64machineE5D6AAD57490DD68FC117CC02F172A6D86CF6777F91689DD710594B0C0FB1D8F

Details

Homepage: https://www.edrlab.org/software/thorium-reader/
License: BSD-3-Clause
Publisher: EDRLab
Support: https://github.com/edrlab/thorium-reader/issues
Privacy Policy: https://www.edrlab.org/legal-information/
Copyright: Copyright (c) 2026, EDRLab

Older versions (12)

3.4.0

x64user4F8EB97E3572602F27372125E300246DB2CF9281F670B0F844B853C9C1340B67

x64machine4F8EB97E3572602F27372125E300246DB2CF9281F670B0F844B853C9C1340B67

arm64user99F2EBC3DB4C4F416157D456427EE2D0B545CBB2FB0AACCB31966DDF2ABE8273

arm64machine99F2EBC3DB4C4F416157D456427EE2D0B545CBB2FB0AACCB31966DDF2ABE8273

3.3.0

x64userAC1A60804FBE98DC76A0CF73DE6C49C3A2DC283D0866597B1ACB600CCB775EB4

x64machineAC1A60804FBE98DC76A0CF73DE6C49C3A2DC283D0866597B1ACB600CCB775EB4

arm64user3D119CFB044550B8A9E01053E820BD57D8C89754063C82989C7146A18E1B177A

arm64machine3D119CFB044550B8A9E01053E820BD57D8C89754063C82989C7146A18E1B177A

3.2.2

x64user3C5AB3579550F2047B109CE27CFCE8F3A3261BDF70A4BB86F63B16EE0821660D

x64machine3C5AB3579550F2047B109CE27CFCE8F3A3261BDF70A4BB86F63B16EE0821660D

arm64user9E529D50BA1DD98C99226AFA44B48EEB308001EF59815BBF86B31C8E805F609C

arm64machine9E529D50BA1DD98C99226AFA44B48EEB308001EF59815BBF86B31C8E805F609C

3.2.1

x64user84FDA3C9A04610150DFE219AE3820A3AA84A1B5540B2E28FDFD425666E2EDF6C

x64machine84FDA3C9A04610150DFE219AE3820A3AA84A1B5540B2E28FDFD425666E2EDF6C

arm64userEB95007D0E8A21703BC003D10F09AAA7814667189E4076DBD412EA19E5C399DA

arm64machineEB95007D0E8A21703BC003D10F09AAA7814667189E4076DBD412EA19E5C399DA

3.1.0

x64user8DB0829AAAB2B24DF2B2CFCD833A84CFE3DB0DE87177A9F5669EE896AABE2DB2

x64machine8DB0829AAAB2B24DF2B2CFCD833A84CFE3DB0DE87177A9F5669EE896AABE2DB2

arm64userFEA829916E5DD0E090DC8AAB44BF3714A1CF874101AC257A21FDA8CF329E66AF

arm64machineFEA829916E5DD0E090DC8AAB44BF3714A1CF874101AC257A21FDA8CF329E66AF

3.0.0

x64—216B7EDFCC03DE89AC663E3F01E1D69AA17BEE3A6F1428B15E00C15496EF137C

2.4.2

x64—F09B179AE4DC616A118ED4E9BA86A697C10E6F302DD0CA218E7E53D709A0890B

2.4.1

x64—F4B8E97EFF17487A5FE20B596F8A18333D9C87C72E02B0AD9DDBAFC1F5627634

2.4.0

x64—145F2080CAE466C714709479C59CC6DB16E77D06A4A2293065C766FCEA6CCD06

2.3.0

x64—BC14EDE28A251C817435288E4E41A2DAC4361640154EF39332140006D19D9A2E

2.2.0

x64—9D508924464CD0C6516CFB557709D336D497EDA255CFC2A52E188DAE03FC91AE

2.1.0

x64—9FEAEB3801A8804430C9B2B99A5DE9FD7BD87B0836F45090EE87E059219B9AF8

Thorium

Latest 3.5.1·September 2, 2026

Installer type: nullsoft

Details

Tags

Older versions (12)

Installer type: `nullsoft`