1
Also covers browser extension and chrome extensions · same kind of open-source project · open source
LightSession trims the page structure in long ChatGPT conversations through a Firefox or Chrome extension.
Alternatives
The Best GPThemes Alternatives in 2026
8 alternatives0 free · 6 open source
Looking for something like GPThemes? Here are 8 alternatives, ranked by how closely they match it on purpose, features and platforms. Of these, 6 are open source.
GPThemes customizes the ChatGPT interface in Chrome and Firefox with color, font, and design settings.
Top picks at a glance
First suggestionLightSessionLightSession trims the page structure in long ChatGPT…Another optionChatGPT BoxChatGPTBox integrates ChatGPT into a browser through an…
Quick comparison
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | LightSession | — | Yes | Browser extension |
| 2 | ChatGPT Box | — | Yes | — |
| 3 | Page Assist | — | Yes | — |
| 4 | Every ChatGPT GUI | Paid | Yes | Browser extension |
| 5 | Awesome ChatGPT | — | Not stated | Browser extension, Linux, macOS |
| 6 | sindresorhus's Awesome ChatGPT | — | Yes | Android, iOS, macOS |
| 7 | Awesome ML | — | Yes | — |
| 8 | altern.ai | — | Not stated | Browser extension, Web |
All GPThemes alternatives
2
Also covers browser extension and chrome extensions · same kind of open-source project · open source
ChatGPTBox integrates ChatGPT into a browser through an extension with additional site interactions.
3
Also covers chrome extensions · same kind of open-source project · open source
Page Assist connects locally running AI models to web browsing through a browser assistant.
4
Also covers browser extension · same kind of open-source project · open source
This list tracks front-end GUI clients for ChatGPT, Claude, and other language models.
5
Awesome ChatGPT
github.com/humanloop/awesome-chatgptAlso covers browser extension · same kind of open-source project
Awesome ChatGPT collects tools, demos, and documentation related to ChatGPT and GPT-3.
6
Also covers browser extension · same kind of open-source project · open source
This repository curates ChatGPT tools, applications, and other resources related to the OpenAI chatbot.
7
Also covers browser extension · same kind of open-source project · open source
This repository collects machine learning resources, including language models, tools, interfaces, and retrieval systems.
8
altern.ai
altern.aiAlso covers browser extension
altern.ai catalogs AI tools and agents with curated lists, categories, and alternatives.
No alternatives match this filter.
Alternatives to similar tools
Every ChatGPT GUI24 alternativesAwesome ML24 alternativesChatGPT Box24 alternativesAwesome ChatGPT15 alternativessindresorhus's Awesome ChatGPT24 alternativesLightSession24 alternatives
What is the best alternative to GPThemes?
Based on features, tags and platforms, the closest alternatives to GPThemes are LightSession, ChatGPT Box, and Page Assist.
Are there open-source alternatives to GPThemes?
Yes: LightSession, ChatGPT Box, Page Assist, and Every ChatGPT GUI.
Alternatives are suggested from the purpose and features described in our listings. Different pages for the same product appear once. Read each description to check whether it fits your task. How we choose alternatives · Suggest an alternative