Calibre Offline Installer

Name: Calibre
Author: Kovid Goyal

Standalone installer · Full setup · Offline installer free download for Windows/macOS/Linux

Office & Productivity · v8.15.0 · Free (GPL)

Free e book manager and converter

Link checked against Kovid Goyal's official domain on June 14, 2026 (automated check; catalog maintained by Avinash Verma, Editor).

License: Free (GPL)

Size: 197.6 MB

Platforms: Windows macOS Linux

Updated: Jun 14, 2026

Quick answer: downloading Calibre

Calibre is a Free (GPL) productivity app for Windows/macOS/Linux from Kovid Goyal. Its official offline (standalone) installer is published as a direct MSI download and installs without an internet connection. Always download from the official source (calibre-ebook.com) — we link there directly and never host or modify the file.

Calibre Trust & Verification

External authoritative sources that identify and verify Calibre.

Wikipedia article

Calibre Offline Installer Downloads

Verified installer files, platform packages, store pages, and browser plugins when available.

Platform	Build	Architecture	Package	Download	Notes
Windows	MSI Calibre Windows offline installer	64-bit	MSI	Download	Direct installer file from the official release host
Windows	Standard package Calibre official download page	All builds	Download page	Download	Use this page to confirm release notes and alternate builds

Platform

Build

Architecture

Package

Download

Notes

Windows

MSI

Calibre Windows offline installer

64-bit

MSI

Download

Direct installer file from the official release host

Windows

Standard package

Calibre official download page

All builds

Download page

Download

Use this page to confirm release notes and alternate builds

Direct installer links are shown only when verified. Store and browser extension rows open the publisher-controlled official destination.

Source: official offline / standalone installer — the verified file above installs without an internet connection.

We do not host software files on our servers. All download links point to the official developer source or a trusted, verified mirror.

Calibre Overview

Calibre is a free, open-source e-book management application for Windows, macOS, and Linux — a complete library and toolkit for digital books. It organizes your e-book collection with metadata, covers, and search; converts between formats such as EPUB, MOBI, AZW3, and PDF; edits e-book files; and syncs books to e-readers and devices. It can also fetch news and convert it to e-books, and includes a built-in reader and an optional content server for accessing your library over a network. It is the standard tool for anyone who manages a sizable e-book collection. As a single complete installer, Calibre finishes setup on a machine that has no connection. A large library of plugins extends it further, and it can search for and download metadata and cover art for your books automatically. Use the link on this page to reach Kovid Goyal's official Calibre download.

Calibre Preview

Calibre Office & Productivity preview card — Calibre — Office & Productivity

Lead card by OfflineInstallerSetup. Logo and screenshots from the publisher's official sources and Wikipedia / Wikimedia Commons under their respective licenses.

Calibre Offline Installer Key Features

Organize an e-book library with metadata and covers
Convert between EPUB, MOBI, AZW3, PDF, and more
Edit e-books and sync to e-readers
Built-in reader and optional content server
Free and open source; Windows, macOS, Linux

Calibre Standalone Installer System Requirements

Baseline requirements to run the current Calibre release:

Operating System: Windows 10/11 (64-bit), macOS 10.15+, Linux (Ubuntu 20.04+)
Memory (RAM): 2 GB minimum, 4 GB recommended
Disk Space: 120 MB free space
Processor: 1 GHz or faster (64-bit)

How to Install Calibre

Follow these steps to install Calibre offline on your PC:

1
Download the Calibre offline installer from the official source below.
2
Launch Calibre from your Start Menu (Windows), Applications folder (macOS), or application launcher (Linux) — installation is complete.

Common Calibre Installation Issues & Fixes

Ran into a problem? Here are the most common issues and how to fix them:

⚠️

Installation fails with 'Missing dependencies' error.

✅

Ensure that your system meets the minimum requirements and that all necessary libraries are installed. For Linux, use your package manager to install any missing dependencies.

⚠️

Calibre does not open after installation.

✅

Check if your antivirus software is blocking Calibre. Temporarily disable your antivirus and try launching Calibre again. If it opens, add Calibre to the exceptions list.