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Sub-Forums : Calibre

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Conversion

Learn about calibre's conversion features and find help when conversion goes wrong

ebook-convert epub to...

by xiatian

Yesterday 01:31 AM

5,837

35,594

Devices

Troubleshoot connection issues specific to your device, and learn how to make the most of calibre's device integration features

Best format to sideload to...

by texasnightowl

Yesterday 04:39 PM

4,484

30,899

Editor

Learn about calibre's Edit Book feature, capable of directly editing ePub and AZW3 formats and find help when problems with editing arise

Adding multiple files to a...

by Trollheart

12-12-2025 08:03 PM

1,865

15,059

Library Management

All about viewing, adding, and exporting books; managing metadata; using templates; creating catalogs and understanding the calibre directory structure

Calibre adding "data" folder...

by BetterRed

Yesterday 04:41 PM

10,477

70,801

Plugins

Use plugins to extend the functionality of calibre

[GUI Plugin] Output Format...

by Comfy.n

Today 04:17 AM

944

72,729

Recipes

Post your calibre news download recipes, solutions and requests

Vox is huge!

by kovidgoyal

Yesterday 12:39 AM

3,993

19,917

Server

This is the place for all your questions about the calibre server feature.

content server OPDS thumbnail...

by kodermike

12-10-2025 10:05 PM

665

3,499

Viewer

This is the place for all your questions about the calibre Viewer

Viewer not opening any ebooks

by jenrar

12-12-2025 01:04 AM

587

4,110

Related Tools

Third party applications that integrate, or are used in conjunction, with calibre; servers, cloud, network, backup and others

Calibre Sync for Android &...

by pdurrant

12-06-2025 05:11 PM

476

7,234

Development

All about hacking on calibre. Discuss calibre's internal structures and API

I want to use VSCODE for...

by wan1967

12-05-2025 11:18 PM

1,061

7,923

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Threads in Forum : Calibre

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Rating Thread / Thread Starter	Last Post	Replies	Views
Sticky Dealing with Kindle ebooks in calibre ( 1 2 3 4 5 ... Last Page) odamizu (05-27-2024)	Today 04:39 AM by bustacap	1,302	884,707
Sticky Color palettes ( 1 2 3 4 5) dunhill (03-06-2024)	11-01-2025 11:01 PM by dunhill	68	101,521
Sticky calibre friday preview releases ( 1 2 3 4 5 ... Last Page) chaley (03-08-2024)	10-11-2025 03:02 AM by ownedbycats	352	200,347
Sticky [Custom Covers] Blanks, Templates - get them, share them, help to modify and create ( 1 2 3 4 5 ... Last Page) MiniMouse (09-08-2013)	06-29-2025 09:05 PM by mifanathan	252	492,522
Sticky Link to new DRM tool version DNSB (07-13-2022)	07-13-2022 07:06 PM by DNSB	0	56,731
Sticky Video Tutorials kovidgoyal (01-26-2011)	01-26-2011 09:04 PM by kovidgoyal	0	158,602
Sticky New to calibre? Start Here kovidgoyal (01-26-2011)	01-26-2011 05:05 PM by kovidgoyal	0	181,395

Turn off/Block AI features ( 1 2 3 4 5 ... Last Page) msr (12-05-2025)	Yesterday 09:46 PM by jhowell	87	12,987
E-book Editor and tabs eating up all the space ( 1 2) Rushdie1234 (06-26-2025)	12-12-2025 11:42 PM by kovidgoyal	17	5,444
Do builtin AI prompts need explict 'say I don't know' instruction? ( 1 2) JimmXinu (12-06-2025)	12-11-2025 01:18 PM by WillAdams	16	2,530
Resource issues on a Mac mini M4 dunhill (12-08-2025)	12-09-2025 09:16 AM by kovidgoyal	4	878
Change the file extensions that Calibre thinks are books zje (12-07-2025)	12-09-2025 04:35 AM by zje	8	1,184
Updates that require a computer restart vs not required JohnnyBook (12-06-2025)	12-07-2025 03:18 PM by JohnnyBook	5	817
Tag browser and Tags Rellwood (11-28-2025)	12-07-2025 11:49 AM by Clem2605	1	1,123
Calibre taking 30+ minutes to start with 20K book library ( 1 2 3 4) Luna (11-23-2025)	12-06-2025 12:18 PM by Luna	52	5,447
New AI feature: What book to read next Leonatus (12-05-2025)	12-06-2025 11:11 AM by Leonatus	14	1,834
[Solved] Can't upgrade calibre shuvashish76 (12-06-2025)	12-06-2025 04:08 AM by shuvashish76	1	505
Calibre-AI with Ollama: TypeError:can only concatenate str (not "list") to str m.s (12-05-2025)	12-06-2025 03:21 AM by m.s	2	689
Why Does SHUTDOWN Take So Long?! ( 1 2) gxn1 (12-03-2025)	12-05-2025 09:52 PM by DNSB	18	2,452
attribute 'underlying_book_id dunhill (12-03-2025)	12-03-2025 12:34 PM by dunhill	2	749
Obok DeDRM doesn't work on some installs of Calibre for Linux tacosauce (11-23-2025)	12-02-2025 01:23 PM by Quoth	11	3,166
Calibre 3.48 & Kobo Libra Color Fortcon (12-01-2025)	12-01-2025 03:32 AM by DNSB	1	639
Bulk edit SVG ElMiko (11-30-2025)	11-30-2025 03:28 PM by BetterRed	3	1,256
Can't Launch Calibre Lewis_Mcc94 (11-06-2025)	11-29-2025 11:28 PM by BetterRed	6	2,054
Calibre doesn't close immediately ( 1 2) JollyRoger (11-26-2025)	11-26-2025 07:15 PM by JollyRoger	18	1,609
Can't launch unless I do as administrator ( 1 2) adriane7 (11-21-2025)	11-24-2025 07:24 AM by JSWolf	21	2,144
Can't launch Calibre adriane7 (11-20-2025)	11-23-2025 03:43 PM by theducks	4	1,514
Ver 8.15 - Comments Change case menu has dissapeared BetterRed (11-22-2025)	11-22-2025 10:59 PM by kovidgoyal	1	688
Similar Books mezme (11-22-2025)	11-22-2025 04:41 PM by theducks	1	767
Cannot Access CBR or CBZ Files Because of File Being Used by Another Process ( 1 2 3) calibreian (06-20-2025)	11-20-2025 10:37 PM by Jaws	31	11,577
recovering a very large Calibre library after system crash ( 1 2) lucask (11-18-2025)	11-20-2025 02:59 PM by JSWolf	21	2,463
first collumn Koosr1946 (11-20-2025)	11-20-2025 11:27 AM by Koosr1946	2	697