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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

KFX to EPUB: "no supported...

by Chocky

11-10-2025 04:27 AM

5,829

35,539

Devices

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

Moved books on KOReader...

by PiperKev

11-12-2025 05:33 PM

4,475

30,822

Editor

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

Html tranform

by JSWolf

10-28-2025 01:34 PM

1,862

15,045

Library Management

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

[FanFicFare] Metadata...

by Elanor Pam

Today 11:50 AM

10,458

70,684

Plugins

Use plugins to extend the functionality of calibre

[GUI Plugin] Quality Check

by Trester99

Today 01:34 PM

934

72,480

Recipes

Post your calibre news download recipes, solutions and requests

New York Times recipe blocked...

by nickredding

Today 12:18 PM

3,985

19,880

Server

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

Connecting calibredb to...

by Venia Legendi

Yesterday 04:07 PM

664

3,495

Viewer

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

Preparing book for first read

by LordP

11-10-2025 09:00 AM

586

4,064

Related Tools

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

Using GPT4All as a research...

by banner520521

Yesterday 04:39 AM

476

7,230

Development

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

Is manual.calibre-ebook.com...

by kovidgoyal

Yesterday 10:19 PM

1,057

7,914

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Threads in Forum : Calibre

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Rating Thread / Thread Starter	Last Post	Replies	Views
Sticky Color palettes ( 1 2 3 4 5) dunhill (03-06-2024)	11-01-2025 11:01 PM by dunhill	68	96,875
Sticky Dealing with Kindle ebooks in calibre ( 1 2 3 4 5 ... Last Page) odamizu (05-27-2024)	10-24-2025 08:48 PM by Sats	1,283	852,382
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	195,646
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	488,153
Sticky Link to new DRM tool version DNSB (07-13-2022)	07-13-2022 07:06 PM by DNSB	0	55,221
Sticky Video Tutorials kovidgoyal (01-26-2011)	01-26-2011 09:04 PM by kovidgoyal	0	156,934
Sticky New to calibre? Start Here kovidgoyal (01-26-2011)	01-26-2011 05:05 PM by kovidgoyal	0	179,818

Cannot Access CBR or CBZ Files Because of File Being Used by Another Process ( 1 2 3) calibreian (06-20-2025)	Yesterday 12:20 PM by miscatonic	30	10,039
Threading Violation Quoth (11-11-2025)	Yesterday 06:56 AM by Quoth	6	1,010
Problem with author directory mariaclaudia (11-07-2025)	11-13-2025 10:36 AM by mariaclaudia	14	2,938
The program does not launch the interface. Frantishek (11-02-2025)	11-11-2025 02:59 PM by tnavarra	7	1,184
Added a custom column for theme Graham44 (11-04-2025)	11-09-2025 05:20 PM by Graham44	6	1,021
Can't Launch Calibre Lewis_Mcc94 (11-06-2025)	11-06-2025 11:32 PM by kovidgoyal	2	647
Calibre Library is Empty Josieb1 (11-06-2025)	11-06-2025 02:16 PM by Josieb1	2	368
Ask about Content Server feature AnnieQuinn (11-05-2025)	11-05-2025 11:50 PM by AnnieQuinn	2	465
How to merge two libraries in Calibre? MonicaOP (11-01-2025)	11-03-2025 05:19 AM by JSWolf	2	767
Calibre Default Conversion Options captainsensible (10-31-2025)	10-31-2025 05:18 PM by BetterRed	2	549
SQLError Message whenever I do anything. qprfan99 (03-21-2024)	10-30-2025 07:15 PM by _nut	13	2,265
Any real difference between using Calibre Portable and regular Calibre on a computer? ( 1 2) Rellwood (10-13-2025)	10-30-2025 10:23 AM by PeterT	16	3,689
question about audiobooks bulldogmo (10-29-2025)	10-30-2025 01:39 AM by bulldogmo	3	890
Embed Metada in PDF p0lrb3ar (10-28-2025)	10-29-2025 07:48 PM by p0lrb3ar	3	1,097
Issue Restoring Database from OPF p0lrb3ar (10-28-2025)	10-28-2025 08:32 PM by DNSB	2	719
Failed to Back Up Device Database enuddleyarbl (10-23-2025)	10-28-2025 04:18 PM by JSWolf	2	988
Apply cbz-style image processing to epub conversion? CavemanJoe (03-20-2025)	10-27-2025 12:36 PM by CavemanJoe	5	2,207
Need help to fix the unicode folder name problem linqison (10-24-2025)	10-25-2025 07:18 AM by Quoth	1	834
I need help Charliee1974 (10-24-2025)	10-24-2025 12:25 PM by kovidgoyal	1	787
Lost setting BetterRed (10-22-2025)	10-22-2025 11:49 PM by BetterRed	1	772
Full-text Query Syntax question ElMiko (10-20-2025)	10-20-2025 01:19 AM by ElMiko	3	801
Error code on starting calibre AlanWojnaroski (10-18-2025)	10-19-2025 12:04 PM by dunhill	3	1,218
Problems downloading Calibre v. 8.13.0 Leonatus (10-17-2025)	10-17-2025 10:29 AM by Leonatus	10	1,356
Migration to new computer pavelk (09-12-2025)	10-17-2025 04:27 AM by dewd	13	9,000
Calibre won't open my ebooks Perplexed1 (10-16-2025)	10-16-2025 04:01 AM by Perplexed1	0	973