# 主流云服务商 (Major Cloud Providers)

> Google Cloud、AWS、Azure、Oracle 等大厂的永久免费额度,适合学习和小型项目起步。
> 共 7 个免费服务。数据来源:https://github.com/ripienaar/free-for-dev(MIT)。更新时间:2026-09-10

- [Google Cloud Platform](https://cloud.google.com)
  - App Engine - 28 frontend instance hours per day, nine backend instance hours per day
  - Cloud Firestore - 1GB storage, 50,000 reads, 20,000 writes, 20,000 deletes per day
  - Compute Engine - 1 non-preemptible e2-micro, 30GB HDD, 5GB snapshot storage (restricted to certain regions), 1 GB network egress from North America to all region destinations (excluding China and Australia) per month
  - Cloud Storage - 5GB, 1GB network egress
  - Cloud Shell - Web-based Linux shell/primary IDE with 5GB of persistent storage. 60-hour limit per week
  - Cloud Pub/Sub - 10GB of messages per month
  - Cloud Functions - 2 million invocations per month (includes both background and HTTP invocations)
  - Cloud Run - 2 million requests per month, 360,000 GB-seconds memory, 180,000 vCPU-seconds of compute time, 1 GB network egress from North America per month
  - Google Kubernetes Engine - No cluster management fee for one zonal cluster. Each user node is charged at standard Compute Engine pricing
  - BigQuery - 1 TB of querying per month, 10 GB of storage each month
  - Cloud Build - 120 build-minutes per day
  - [Google Colab](https://colab.research.google.com/) — Free Jupyter Notebooks development environment.
  - [Kaggle](https://www.kaggle.com/) — Jupyter Notebooks with 4 CPU cores and 30 GB RAM computational environment without any weekly usage limits. With Phone number verification, 1 Nvidia Tesla P100 GPU or 2x Nvidia Tesla T4 GPU can be added with a usage limit of 30 GPU hours/week for free. With Identity verification - 1 TPU v3-8 with 96 CPU cores and 330 GB RAM is available with a usage limit of 20 hours/week for free. Check [Technical Specifications](https://www.kaggle.com/docs/notebooks#technical-specifications) for more details.
  - [ChromeRemoteDesktop](https://remotedesktop.google.com/) — Free remote desktop app with practically no limit on the number of devices, owned by Google, so needs a Google account.
  - [Google AI Studio](https://aistudio.google.com/) — Get free access to Gemini 3.5 Flash, Gemini 3 Flash and Gemma 4 models. The free tier for Flash offers 5 requests per minute, 20 requests per day, and 250k input tokens per minute. Meanwhile the free tier for Gemma 4 offers 30 requests per minute, 14.4k requests per day, but (only) 16k input tokens per minute.
  - Full, detailed list - https://cloud.google.com/free
- [Amazon Web Services](https://aws.amazon.com)
  - [CloudFront](https://aws.amazon.com/cloudfront/) — 1TB egress/month, 10M HTTP requests, and 2M Function invocations/month
  - [CloudWatch](https://aws.amazon.com/cloudwatch/) — 10 custom metrics and alarms, 1M API requests, 5GB of log data ingestion and 5GB of log data archive
  - [CodeBuild](https://aws.amazon.com/codebuild/) — 100min of build time/month
  - [CodeCommit](https://aws.amazon.com/codecommit/) — 5 active users, 5k repositories/account, 50GB storage/month and 10K requests/month
  - [CodePipeline](https://aws.amazon.com/codepipeline/) — 1 active pipeline/month
  - [DynamoDB](https://aws.amazon.com/dynamodb/) — 25GB NoSQL DB
  - [Lambda](https://aws.amazon.com/lambda/) — 1 million requests/month
  - [SNS](https://aws.amazon.com/sns/) — 1 million publishes/month
  - [SES](https://aws.amazon.com/ses/) — 3.000 messages/month (6mo)
  - [SQS](https://aws.amazon.com/sqs/) — 1 million messaging queue requests
  - Full, detailed list - https://aws.amazon.com/free/
- [Microsoft Azure](https://azure.microsoft.com)
  - [App Service](https://azure.microsoft.com/services/app-service/) — 10 web, mobile, or API apps (60 CPU minutes/day)
  - [Functions](https://azure.microsoft.com/services/functions/) — 1 million requests per month
  - [DevTest Labs](https://azure.microsoft.com/services/devtest-lab/) — Enable fast, easy, and lean dev-test environments
  - [Active Directory](https://azure.microsoft.com/services/active-directory/) — 500,000 objects
  - [Active Directory B2C](https://azure.microsoft.com/services/active-directory/external-identities/b2c/) — 50,000 monthly stored users
  - [Azure DevOps](https://azure.microsoft.com/services/devops/) — 5 active users, unlimited private Git repos
  - [Azure Pipelines](https://azure.microsoft.com/services/devops/pipelines/) — 10 free parallel jobs with unlimited minutes for open source for Linux, macOS, and Windows
  - [Microsoft IoT Hub](https://azure.microsoft.com/services/iot-hub/) — 8,000 messages per day
  - [Load Balancer](https://azure.microsoft.com/services/load-balancer/) — 750 hours, 15GB data processing and 5 rules (12mo)
  - [Notification Hubs](https://azure.microsoft.com/services/notification-hubs/) — 1 million push notifications
  - [Bandwidth](https://azure.microsoft.com/pricing/details/bandwidth/) — 15GB Outbound(12mo)
  - [Cosmos DB](https://azure.microsoft.com/services/cosmos-db/) — 25GB storage and 1000 RUs of provisioned throughput
  - [Static Web Apps](https://azure.microsoft.com/pricing/details/app-service/static/) — Build, deploy, and host static apps and serverless functions with free SSL, Authentication/Authorization, and custom domains
  - [Storage](https://azure.microsoft.com/services/storage/) — 100GB LRS transactions (Azure Files), 5GB Blob storage, 10GB LRS Archive Storage, 2x64GB SSD (12mo)
  - [Cognitive Services](https://azure.microsoft.com/services/cognitive-services/) — AI/ML APIs (Computer Vision, Translator, Face detection, Bots, etc) with free tier including limited transactions
  - [Cognitive Search](https://azure.microsoft.com/services/search/#features) — AI-based search and indexation service, free for 10,000 documents
  - [Azure Kubernetes Service](https://azure.microsoft.com/services/kubernetes-service/) — Managed Kubernetes service, free cluster management
  - [Event Grid](https://azure.microsoft.com/services/event-grid/) — 100K ops/month
  - [Service Bus](https://azure.microsoft.com/products/service-bus/) — 750 hours and 13 million operations Standard tier base unit (12mo)
  - Full, detailed list - https://azure.microsoft.com/free/
- [Oracle Cloud](https://www.oracle.com/cloud/)
  - Compute
  - 2 AMD-based Compute VMs with 1/8 OCPU and 1 GB memory each
  - 2 Arm-based Ampere A1 cores and 12 GB of memory usable as one VM or up to 2 VMs
  - Instances will be reclaimed when [deemed idle](https://docs.oracle.com/en-us/iaas/Content/FreeTier/freetier_topic-Always_Free_Resources.htm#compute__idleinstances)
  - Block Volume - 2 volumes, 200 GB total (used for compute)
  - Object Storage - 10 GB
  - Load balancer - 1 instance with 10 Mbps
  - Databases - 2 DBs, 20 GB each
  - Monitoring - 500 million ingestion data points, 1 billion retrieval datapoints
  - Bandwidth - 10 TB egress per month, speed limited to 50 Mbps on x64-based VM, 500 Mbps * core count on ARM-based VM
  - Public IP - 2 IPv4 for VMs, 1 IPv4 for load balancer
  - Notifications - 1 million delivery options per month, 1000 emails sent per month
  - Full, detailed list - https://www.oracle.com/cloud/free/
- [IBM Cloud](https://www.ibm.com/cloud/free/)
  - Cloudant database - 1 GB of data storage
  - Db2 database - 100MB of data storage
  - API Connect - 50,000 API calls per month
  - Availability Monitoring - 3 million data points per month
  - Log Analysis - 500MB of daily log
  - Full, detailed list - https://www.ibm.com/cloud/free/
- [Cloudflare](https://www.cloudflare.com/)
  - [Application Services](https://www.cloudflare.com/plans/) — Free DNS for an unlimited number of domains, DDoS Protection, CDN along with free SSL, Firewall rules and page rules, WAF, Bot Mitigation, Free Unmetered Rate Limiting - 1 rule per domain, Analytics, Email forwarding
  - [Zero Trust & SASE](https://www.cloudflare.com/plans/zero-trust-services/) — Up to 50 Users, 24 hours of activity logging, three network locations
  - [Cloudflare Tunnel](https://www.cloudflare.com/products/tunnel/) — You can expose locally running HTTP port over a tunnel to a random subdomain on trycloudflare.com use [Quick Tunnels](https://developers.cloudflare.com/cloudflare-one/connections/connect-networks/do-more-with-tunnels/trycloudflare/), No account required. More features (TCP tunnel, Load balancing, VPN) in [Zero Trust](https://www.cloudflare.com/products/zero-trust/) Free Plan.
  - [Workers](https://developers.cloudflare.com/workers/) — Deploy serverless code for free on Cloudflare's global network-100k daily requests.
  - [Workers KV](https://developers.cloudflare.com/kv) — 100k read requests per day, 1000 write requests per day, 1000 delete requests per day, 1000 list requests per day, 1 GB stored data
  - [R2](https://developers.cloudflare.com/r2/) — 10 GB per month, 1 million Class A operations per month, 10 million Class B operations per month
  - [D1](https://developers.cloudflare.com/d1/) — 5 million rows read per day, 100k rows written per day, 1 GB storage
  - [Pages](https://developers.cloudflare.com/pages/) — Develop and deploy your web apps on Cloudflare's fast, secure global network. Five hundred monthly builds, 100 custom domains, Integrated SSL, unlimited accessible seats, unlimited preview deployments, and full-stack capability via Cloudflare Workers integration.
  - [Queues](https://developers.cloudflare.com/queues/) — 1 million operations per month
  - [TURN](https://developers.cloudflare.com/calls/turn/) — 1TB of free (outgoing) traffic per month.
- [Zoho](https://www.zoho.com) — Started as an e-mail provider but now provides a suite of services, some of which have free plans. List of services having free plans :
  - [Catalyst by Zoho](https://catalyst.zoho.com) — PaaS/full-stack cloud platform with a generous [free tier](https://catalyst.zoho.com/free-tier.html)
  - [Zoho Apptics](https://www.zoho.com/apptics/) — Unified and actionable product analytics to monitor performance, analyze user behavior and collect feedback for mobile, web, and desktop apps with generous Free Forever plan.
  - [Email](https://zoho.com/mail) Free for 5 users. 5GB/user & 25 MB attachment limit, one domain.
  - [Zoho Assist](https://www.zoho.com/assist) — Zoho Assist's forever free plan includes one concurrent remote support license and Access to 5 unattended computer licenses for unlimited duration available for both professional and personnel use.
  - [Sprints](https://zoho.com/sprints) Free for 5 users,5 Projects & 500MB storage.
  - [Docs](https://zoho.com/docs) — Free for 5 users with 1 GB upload limit & 5GB storage. Zoho Office Suite (Writer, Sheets & Show) comes bundled.
  - [Projects](https://zoho.com/projects) — Free for 3 users, 2 projects & 10 MB attachment limit. The same plan applies to [Bugtracker](https://zoho.com/bugtracker).
  - [Connect](https://zoho.com/connect) — Team Collaboration free for 25 users with three groups, three custom apps, 3 Boards, 3 Manuals, and 10 Integrations along with channels, events & forums.
  - [Meeting](https://zoho.com/meeting) — Meetings with upto 3 meeting participants & 10 Webinar attendees.
  - [Vault](https://zoho.com/vault) — Password Management is accessible for Individuals.
  - [Showtime](https://zoho.com/showtime) — Yet another Meeting software for training for a remote session of up to 5 attendees.
  - [Notebook](https://zoho.com/notebook) — A free alternative to Evernote.
  - [Wiki](https://zoho.com/wiki) — Free for three users with 50 MB storage, unlimited pages, zip backups, RSS & Atom feed, access controls & customizable CSS.
  - [Subscriptions](https://zoho.com/subscriptions) — Recurring Billing management free for 20 customers/subscriptions & 1 user with all the payment hosting done by Zoho. The last 40 subscription metrics are stored
  - [Checkout](https://zoho.com/checkout) — Product Billing management with 3 pages & up to 50 payments.
  - [Desk](https://zoho.com/desk) — Customer Support management with three agents, private knowledge base, and email tickets. Integrates with [Assist](https://zoho.com/assist) for one remote technician & 5 unattended computers.
  - [Cliq](https://zoho.com/cliq) — Team chat software with 100 GB storage, unlimited users, 100 users per channel & SSO.
  - [Campaigns](https://zoho.com/campaigns) — Email Marketing
  - [Forms](https://zoho.com/forms) — Form Creator
  - [Sign](https://zoho.com/sign) — Paperless Signatures
  - [Surveys](https://zoho.com/surveys) — Online Surveys
  - [Bookings](https://zoho.com/bookings) — Appointment Scheduling