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Open source alternatives to PDFgear

50 open source AI apps to use instead, best rated first.

Top picks

  1. O

    Open WebUI

    Launch

    Self-hosted AI platform that connects local and cloud models, extends with Python, and keeps your data under your control.

    Open sourceSelf-hosted

  2. A

    AutoGPT

    Launch

    Platform for building, deploying, and running AI agents that automate repeatable digital work across research, outreach, content, and support without writing code.

    Open source

  3. P

    pi

    Launch

    Terminal-based coding agent with a minimal core, 15+ LLM providers, tree-structured session history, and a TypeScript extension system for building your own workflows.

    Open source

  4. A

    AFFiNE

    Launch

    An open-source, local-first knowledge base that merges structured docs, infinite whiteboards, databases, and AI into a single workspace for teams and creators.

    Open source

  5. A

    aider

    Launch

    Terminal-based AI coding tool that lets you edit existing codebases or start new projects using LLMs like Claude, GPT, and DeepSeek.

    Open source

  6. A

    AppFlowy

    Launch

    Open source collaborative workspace combining notes, databases, and AI with full data ownership, offline support, and self-hosting options.

    Open source

More AI apps

See all
7
C

Cherry Studio

Desktop AI client for Windows, macOS, and Linux

Launch
8
C

Cline

AI Coding, Open Source and Open Choice

Launch
9
C

Crawl4AI

Open-source web crawler and scraper

Launch
10
E

ego lite

Fastest browser for AI agents

Launch
11
F

FastGPT

FastGPT is a free, open-source platform

Launch
12
J

Jan

Jan runs open-source AI models on your own hardware or connects

Launch
13
K

Keploy

Open source Tool for converting user traffic to Test Cases and Data Stubs

Launch
14
L

Langflow

Build, deploy, and iterate on AI agents, RAG applications, and MCP servers

Launch
15
L

LibreChat

LibreChat is a free and open-source chat interface for assistant AIs

Launch
16
L

LiteLLM

Acts as a unified proxy across 100+ LLMs

Launch
17
L

llama.cpp

C/C++ inference engine for large language models, supporting quantization

Launch
18
L

LobeHub

An open-source AI Agent Workspace

Launch
19
N

NanoClaw

Self-hosted AI agent that connects to WhatsApp, Telegram, Slack

Launch
20
O

Ollama

Load and run large LLMs locally to use in your terminal or build your apps

Launch
21
O

OpenClaw

Open-source personal AI assistant / agent framework

Launch
22
O

OpenCode

Open-source terminal-native AI coding agent

Launch
23
O

OpenHands

AI agent platform that runs autonomous coding agents to plan, write

Launch
24
O

Orca

Agent Development Environment that runs Claude Code, Codex, Gemini

Launch
25
P

Paperclip

Manages teams of AI agents across business functions

Launch
26
P

Phoenix

Arize Phoenix: Open Source AI Development Platform

Launch
27
P

Portkey

Full-stack LLMOps platform to monitor, manage, and improve LLM-based apps

Launch
28
T

Tabby

Self-hosted AI coding assistant that enhances productivity

Launch
29
V

vLLM

Inference and serving engine for large language models, built

Launch
30
W

Warp

Terminal built for running AI coding agents like Claude Code, Codex

Launch
31
Z

Zed

Your last next editor

Launch
32
U

Unsloth

Local UI to run and train LLMs and diffusion models

Launch
33
T

Theia IDE

An extensible open-source IDE

Launch
34
P

PhotoPrism

AI-Powered Photos App

Launch
35
E

ECC

The agent harness performance optimization system

Launch
36
G

Graphify

Turn any codebase, with its docs, SQL schemas, configs, and PDFs

Launch
37
C

Codex

Lightweight coding agent that runs in your terminal

Launch
38
U

Upscayl

Free and Open Source AI Image Upscaler

Launch
39
C

Chatbox AI

Chatbox AI enables chat with documents, images

Launch
40
F

Folo

Folo is the AI RSS Reader

Launch
41
N

Netron

Visualizer for neural network and machine learning models

Launch
42
G

Gorilla

Training and Evaluating LLMs for Function Calls (Tool Calls)

Launch
43
S

Strix

Open-source AI penetration testing tool to find

Launch
44
C

CC Switch

A cross-platform desktop All-in-One assistant for Claude Code, Codex, OpenCode

Launch
45
1

1Panel

Comprehensive web-based tool for Linux server administration

Launch
46
A

Agno

Open-source platform that enables developers to create

Launch
47
A

AnythingLLM

A desktop and self-hostable AI app for chatting

Launch
48
B

Buzz

Workspace that combines team chat, project planning, and git management

Launch
49
C

Chat2DB

DBMS 、BI 、Report 、 NL2SQL、NL2Report

Launch
50
C

Chroma

Open-source vector database designed for AI applications

Launch

About PDFgear

P

PDFgear

AI-integrated PDF editor

PDFgear is a full-featured and free PDF editor, which provides read, edit, annotation, convert, sign, combine, merge, compress, page management, encrypt, and print PDF documents. "It’s called PDFgear, and it’s a holy grail I never thought I’d find." - Digital Trends "PDFgear is a full toolkit for doing pretty much anything you could want to do with a PDF." - Lifewire "Simply open the file in…

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