Champ NAV

暂无描述

https://unsplash.com/

Pexels - Free stock photos and videos

暂无描述

https://pexels.com/

Pixabay - Free images, vectors, illustrations

暂无描述

https://pixabay.com/

Freepik - Free icons, vectors, PSDs

暂无描述

https://www.freepik.com/

Wallhaven - Wallpaper repository

暂无描述

https://wallhaven.cc/

Behance - Creative work showcase

暂无描述

https://www.behance.net/

DeviantArt - Global art community

暂无描述

https://www.deviantart.com/

Pakutaso - Japanese free素材 library

暂无描述

https://www.pakutaso.com/

Wikimedia Commons - Free media repository

暂无描述

https://commons.wikimedia.org/

Google Fonts - Open source fonts

暂无描述

https://fonts.google.com/

Font Squirrel - Free commercial fonts

暂无描述

https://www.fontsquirrel.com/

DaFont - Extensive free font collection

暂无描述

https://www.dafont.com/

Adobe Fonts - Professional font library

暂无描述

https://fonts.adobe.com/

Zcool Fonts - Free Chinese fonts

暂无描述

https://www.zcool.com.cn/font

PangMenZiDiao - Free font sharing

暂无描述

http://www.pmzao.com/freefont

ZiYou - Font management & download

暂无描述

https://www.100font.com/

Fontke - Free font download

暂无描述

https://www.fontke.com/

Pixabay Music - Free music & sound effects

暂无描述

https://pixabay.com/music

YouTube Audio Library - Royalty-free music

暂无描述

https://www.youtube.com/audiolibrary

Free Music Archive - Independent music archive

暂无描述

https://freemusicarchive.org/

Freesound - Free sound effects community

暂无描述

https://freesound.org/

Zapsplat - Free sound effects library

暂无描述

https://www.zapsplat.com/

Fesliyan Studios - Free background music

暂无描述

https://www.fesliyanstudios.com/

Kevin MacLeod - Free background music

暂无描述

https://incompetech.com/

SoundCloud - Independent music platform

暂无描述

https://soundcloud.com/

Canva - Online design tool (free)

暂无描述

https://www.canva.com/

Figma - Free UI design tool

暂无描述

https://www.figma.com/

Dribbble - Designer portfolio platform

暂无描述

https://dribbble.com/

Flaticon - Free icon library

暂无描述

https://www.flaticon.com/

Alibaba Iconfont - Free vector icons

暂无描述

https://www.iconfont.cn/

UI4APP - Free UI interface assets

暂无描述

https://ui4app.com/

Coolors - Color palette generator

暂无描述

https://coolors.co/

Color Shades - Color tool

暂无描述

https://www.toptal.com/designers/colorshades

GitHub - Code hosting & open source

暂无描述

https://github.com/

GitLab - Open source code hosting

暂无描述

https://gitlab.com/

npm - JavaScript package manager

暂无描述

https://www.npmjs.com/

PyPI - Python package index

暂无描述

https://pypi.org/

SourceForge - Open source software repo

暂无描述

https://sourceforge.net/

Software Freedom Conservancy

暂无描述

https://www.softwarefreedom.org/

Mozilla - Open source browser

暂无描述

https://www.mozilla.org/

JetBrains Open Source License

暂无描述

https://www.jetbrains.com/community/opensource

Coursera - University free courses

暂无描述

https://www.coursera.org/

edX - Harvard & MIT courses

暂无描述

https://www.edx.org/

Khan Academy - Free online education

暂无描述

https://www.khanacademy.org/

MIT OpenCourseWare - MIT open courses

暂无描述

https://ocw.mit.edu/

Duolingo - Free language learning

暂无描述

https://www.duolingo.com/

NetEase OpenClassroom - Free lectures

暂无描述

https://open.163.com/

China University MOOC - Free courses

暂无描述

https://www.funmooc.com/

Project Gutenberg - Free eBooks

暂无描述

https://www.gutenberg.org/

Internet Archive - Digital library

暂无描述

https://archive.org/

TinyPNG - Image compression

暂无描述

https://tinypng.com/

iLoveIMG - Online image processing

暂无描述

https://www.iloveimg.com/

Remove.bg - Online background removal

暂无描述

https://www.remove.bg/

Photopea - Online PS alternative

暂无描述

https://www.photopea.com/

Online-Convert - File format conversion

暂无描述

https://www.online-convert.com/

123apps - Online photo editor

暂无描述

https://www.123apps.com/

SmallPDF - PDF tools

暂无描述

https://smallpdf.com/

Dropbox - Free cloud storage

暂无描述

https://www.dropbox.com/

American Red Cross

暂无描述

https://www.redcross.org/

International Committee of the Red Cross (ICRC)

暂无描述

https://www.icrc.org/

UNICEF - United Nations Children's Fund

暂无描述

https://www.unicef.org/

World Food Programme (WFP)

暂无描述

https://www.wfp.org/

China Earthquake Administration

暂无描述

https://www.earthquake.gov.cn/

UN Sustainable Development Goals

暂无描述

https://www.un.org/sdg

Charity Navigator - Charity evaluator

暂无描述

https://www.charitynavigator.org/

Give.org - BBB Wise Giving Alliance

暂无描述

https://www.give.org/

China Public Welfare Network

暂无描述

https://www.chinapublicwelfare.net.cn/

Candid (formerly Foundation Center)

暂无描述

https://www.foundationcenter.org/

UNESCO - Education, science & culture

暂无描述

https://www.unesco.org/

One World Education - Global education charity

暂无描述

https://www.oneworldeducation.org/

Pearson Foundation

暂无描述

https://www.pearsonfoundation.org/

Global Health Care Education

暂无描述

https://www.ghc.org/

WHO - World Health Organization

暂无描述

https://www.who.int/

Doctors Without Borders (MSF)

暂无描述

https://www.doctorswithoutborders.org/

Gavi - The Vaccine Alliance

暂无描述

https://www.gavi.org/

The Global Fund

暂无描述

https://www.globalfund.org/

Medicines Without Borders

暂无描述

https://www.medicina.org/

Greenpeace International

暂无描述

https://www.greenpeace.org/

World Wildlife Fund (WWF)

暂无描述

https://www.worldwildlife.org/

UN Environment Programme

暂无描述

https://www.unep.org/

Oceana - Ocean conservation

暂无描述

https://www.oceana.org/

The Nature Conservancy

暂无描述

https://www.nature.org/

Carbon Brief - Climate news

暂无描述

https://www.carbonbrief.org/

ASPCA - American Society for Prevention of Cruelty to Animals

暂无描述

https://www.aspcapro.org/

PETA - People for the Ethical Treatment of Animals

暂无描述

https://www.peta.org/

World Animal Protection

暂无描述

https://www.worldanimalprotection.org/

National Audubon Society

暂无描述

https://www.audubon.org/

Save the Children

暂无描述

https://www.savethechildren.net/

Kickstarter - Creative project funding

暂无描述

https://www.kickstarter.com/

GoFundMe - Personal fundraising

暂无描述

https://www.gofundme.com/

Indiegogo - Crowdfunding platform

暂无描述

https://www.indiegogo.com/

DonorsChoose - Education fundraising

暂无描述

https://www.donorschoose.org/

Global Giving - International charities

暂无描述

https://www.globalgiving.org/

Humanitarian Response Portal

暂无描述

https://www.humanitarianresponse.info/

UNHCR - Refugee agency

暂无描述

https://www.unhcr.org/

Save the Children

暂无描述

https://www.savethechildren.org/

MotherCare International

暂无描述

https://www.mothercare.org/

National Federation of the Blind

暂无描述

https://www.blind.org/

ChatGPT - OpenAI chat assistant (free)

暂无描述

https://chat.openai.com/

Google Gemini (formerly Bard) - Free AI chat

暂无描述

https://gemini.google.com/

Claude - Anthropic free tier

暂无描述

https://claude.ai/

Meta AI - Meta free AI assistant

暂无描述

https://ai.meta.com/

Perplexity - AI search assistant (free)

暂无描述

https://www.perplexity.ai/

Microsoft Copilot - Free AI chat (Bing)

暂无描述

https://chatgpt.com/growth

Luma AI - Free 3D capture & generation

暂无描述

https://www.luma.ai/

Character.AI - AI character chat (free)

暂无描述

https://www.character.ai/

Grok - xAI AI assistant

暂无描述

https://www.grok.com/

HuggingChat - Free open-source LLM chat

暂无描述

https://www.huggingchat.co/

腾讯 AI - Tencent free AI

暂无描述

https://ai.qq.com/

豆包 - ByteDance free AI

暂无描述

https://chat.xiaohuanxiong.com/

Playground AI - Free AI image generator

暂无描述

https://playground.com/

Leonardo.AI - Free AI art generation

暂无描述

https://www.leonardo.ai/

SeaArt - Free AI art platform

暂无描述

https://www.seaart.ai/

LiblibAI - 哩布哩布 - Free AI model sharing

暂无描述

https://www.liblib.art/

Stable Diffusion Web (free)

暂无描述

https://www.tenor.com/

Bing Image Creator - Free DALL-E 3

暂无描述

https://www.bing.com/images/create

GetIMG - Free AI image generator

暂无描述

https://www.getimg.ai/

Photoroom - Free AI photo editing

暂无描述

https://www.photosonic.ai/

Stability AI - Stable Diffusion

暂无描述

https://stability.ai/

Craiyon (formerly DALL-E mini) - Free

暂无描述

https://craiyon.com/

AI Image Generator - Free

暂无描述

https://www.aiimagegenerator.com/

Krea AI - Real-time AI art

暂无描述

https://www.krea.ai/

GitHub Copilot - Free for students & OSS

暂无描述

https://github.com/features/copilot

Cursor - AI code editor (free tier)

暂无描述

https://www.cursor.com/

Codeium - Free AI coding assistant

暂无描述

https://codeium.com/

Tabnine - Free AI code completion

暂无描述

https://www.tabnine.com/

Continue.dev - Open-source AI coding

暂无描述

https://www.continue.dev/

Sourcerer - Free AI coding agent

暂无描述

https://www.sourcerer.ai/

Cody - Free AI coding (Sourcegraph)

暂无描述

https://www.cody.ai/

Replit - Free online coding with AI

暂无描述

https://replit.com/

Bolt.new - AI web app builder

暂无描述

https://www.bolt.new/

Hugging Face - Model hub & datasets (free)

暂无描述

https://huggingface.co/

Hugging Face Datasets

暂无描述

https://huggingface.co/datasets

Hugging Face Spaces - Free demos

暂无描述

https://huggingface.co/spaces

Kaggle - Free datasets & competitions

暂无描述

https://kaggle.com/

TensorFlow Datasets

暂无描述

https://www.tensorflow.org/datasets

OpenML - Open machine learning

暂无描述

https://www.openml.org/

Papers With Code - SOTA models & datasets

暂无描述

https://paperswithcode.com/

ModelScope - 魔搭 - Free AI models

暂无描述

https://www.modelscope.cn/

ModelScope Datasets

暂无描述

https://www.modelscope.cn/datasets

GitHub Model Zoo

暂无描述

https://github.com/topics/model-zoo

Google Colab - Free cloud GPU for AI

暂无描述

https://colab.research.google.com/

Kaggle Kernels - Free GPU notebooks

暂无描述

https://www.kaggle.com/kernels

GitHub Codespaces - Free dev environment

暂无描述

https://github.com/codespaces

Paperspace Gradient - Free tier GPU

暂无描述

https://www.paperspace.com/

Weights & Biases - Free experiment tracking

暂无描述

https://wandb.ai/

Replit - Free online IDE

暂无描述

https://replit.com/

Lambda Labs - Free GPU notebook

暂无描述

https://www.lambdalabs.com/

HF Spaces - Free GPU hosting

暂无描述

https://huggingface.co/spaces

DeepLearning.AI - Andrew Ng's free courses

暂无描述

https://www.deeplearning.ai/

fast.ai - Free deep learning courses

暂无描述

https://www.fast.ai/

Hugging Face Courses - Free ML/AI

暂无描述

https://huggingface.co/learn

CS231n - Stanford CNN for Visual Recognition

暂无描述

https://cs231n.github.io/

CS224n - Stanford NLP

暂无描述

https://cs224n.github.io/

Kaggle Learn - Free micro-courses

暂无描述

https://www.kaggle.com/learn

Coursera AI courses

暂无描述

https://www.coursera.org/ai

edX AI courses

暂无描述

https://www.edx.org/learn/artificial-intelligence

ML Crash Course - Free

暂无描述

https://www.ml-crashcourse.dev/

Two Minute Papers - AI research videos

暂无描述

https://www.youtube.com/@TwoMinutePapers

Notion AI - AI writing assistant (free)

暂无描述

https://www.notion.so/

Synthesia - Free AI video generation

暂无描述

https://www.synthesia.io/

Pictory - Free AI video creation

暂无描述

https://www.pictory.ai/

ElevenLabs - Free AI voice (10k chars/mo)

暂无描述

https://www.elevenlabs.io/

Murf - Free AI voice generator

暂无描述

https://www.murf.ai/

TTSMP3 - Free text-to-speech

暂无描述

https://www.ttsmp3.com/

HeyGen - Free AI avatar video

暂无描述

https://www.heygen.com/

Lalal.ai - Free AI music separation

暂无描述

https://www.lalal.ai/

Suno - Free AI music generation

暂无描述

https://www.suno.ai/

Veo - Google AI video generation

暂无描述

https://www.veo3.ai/

RunwayML - Free AI video editing

暂无描述

https://www.runwayml.com/

AI News - Latest AI headlines

暂无描述

https://www.artificialintelligence-news.com/

The Register - AI section

暂无描述

https://www.theregister.com/ai

arXiv - Preprint papers (cs.AI)

暂无描述

https://arxiv.org/

GitHub AI Topics

暂无描述

https://github.com/topics/artificial-intelligence

Reddit - r/Artificial

暂无描述

https://www.reddit.com/r/artificial

LMSys Chatbot Arena - LLM rankings

暂无描述

https://www.lmarena.ai/

Hugging Face Blog

暂无描述

https://huggingface.co/blog

OpenAI Blog

暂无描述

https://openai.com/blog

中国人工智能网 - 国内AI资讯

暂无描述

https://www.aibn.cn/

Perplexity - AI-powered search

暂无描述

https://www.perplexity.ai/

Brave Search - AI-enhanced search

暂无描述

https://search.brave.com/

Kagi - Search (free trial)

暂无描述

https://www.kagi.com/

Bing - Microsoft Copilot search

暂无描述

https://www.bing.com/

Google - AI Overviews (free)

暂无描述

https://www.google.com/search

Search.ai - AI search

暂无描述

https://search.ai/

Metaphor - AI semantic search

暂无描述

https://www.metaphor.com/

ChatPDF - AI document search (free)

暂无描述

https://www.chatpdf.com/

Wikipedia - Free encyclopedia

暂无描述

https://www.wikipedia.org/

Wikipedia (English)

暂无描述

https://en.wikipedia.org/

Wikipedia (Chinese)

暂无描述

https://zh.wikipedia.org/

Google - Search engine

暂无描述

https://www.google.com/

Bing - Search engine

暂无描述

https://www.bing.com/

DuckDuckGo - Privacy search engine

暂无描述

https://duckduckgo.com/

Google Advanced Search

暂无描述

https://www.google.com/advanced_search

Startpage - Privacy search