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The AI stack

The whole five-layer mapL3InfrastructureL4Models & toolingL5Applications

Categories

Local & Sovereign AINotes & KnowledgeObservability & MonitoringPassword ManagersWeb AnalyticsTeam ChatSmart HomeNetworking & RoutersVideo ConferencingCloud Storage & SyncPhotos & MediaAPI DevelopmentImage EditingWorkflow Automation & iPaaSDeveloper Tools & ContainersOffice & Productivity SuitesNo-Code DatabasesCode Hosting & Git ForgesProject ManagementEmail Marketing & NewslettersScheduling & BookingError Tracking & Exception MonitoringLog Management & SIEMVPN & PrivacyEmail & Secure MailVector Databases & AI SearchLLM & Agent FrameworksDomains & Web HostingData Removal & PrivacyAuthentication & IdentityHelp Desk & Customer SupportCloud & VPSKubernetes & Container PlatformsEmbedding ModelsPDF & DocumentsAI Coding AssistantsAI Voice & SpeechLLM Observability & EvaluationLLM Gateways & RoutingCloud GPU & AI ComputeCI/CD & build automationData & pipeline orchestrationModel serving & inferenceAI agent frameworksBackend as a serviceSecrets managementFeature flags & experimentationProduct analyticsSearch infrastructureUptime & status monitoringAffiliate & partner platformsVisitor identification & personalisationWikis & internal docsIdentity & access managementData warehouses & analytics enginesCustomer data platformsCRMObject storageBI & dashboardsE-signatureWhiteboards & diagrammingIn-memory data stores & cachingPlatform as a serviceTransactional & bulk emailHeadless CMSDesign & prototypingE-commerce platformsInternal tools & admin panelsManaged databasesForms & surveysFine-Tuning & Model TrainingRAG & Retrieval PlatformsLLM Evaluation & TestingAI Guardrails & Content SafetySpeech Recognition & TranscriptionExperiment Tracking & ML OpsDocument AI & OCR

About

How we rank & score
Best of · 6 tools ranked

The best Cloud Storage & Sync

Every option ranked — open-source, self-hostable, and commercial — by our transparent Sovereignty Score, with honest trade-offs so you choose what fits you, not us.

Keep your files in sync on storage you control, not a vendor's cloud.

L3Infrastructure — layer 3 of the AI stack
  1. 1

    Nextcloud

    Top pickOpen source

    A full self-hosted cloud: files, sharing, and more.

    Free / open-source (self-host); paid support/hosting optional · in our Dropbox comparison →

    90
    sovereignty
    What is Nextcloud? →
  2. 2

    Syncthing

    Open source

    Continuous peer-to-peer file sync with no cloud.

    Free / open-source · in our Dropbox comparison →

    92
    sovereignty
    What is Syncthing? →
  3. 3

    Seafile

    Open source

    Fast, reliable self-hosted file sync and share.

    Free self-host (Community Edition); paid Pro tier · in our Dropbox comparison →

    86
    sovereignty
    What is Seafile? →
  4. 4

    Internxt

    Open sourcePartner

    Open-source, zero-knowledge encrypted storage with lifetime plans.

    10GB free; 200GB ~€3.49/mo; 2TB ~€8.99/mo; lifetime plans from ~€135 one-time · in our Dropbox comparison →

    68
    sovereignty
    What is Internxt? →
  5. 5

    Proton Drive

    CommercialPartner

    End-to-end encrypted cloud storage from the Proton privacy suite.

    Free tier (a few GB); paid from about $4/month (or bundled in Proton Unlimited) · in our Dropbox comparison →

    60
    sovereignty
    What is Proton Drive? →
  6. 6

    pCloud

    CommercialPartner

    Swiss hosted storage with true lifetime plans — the commercial pick.

    500GB & 2TB subscriptions; lifetime plans from ~€199 one-time; zero-knowledge Crypto add-on costs extra · in our Dropbox comparison →

    38
    sovereignty
    What is pCloud? →

Replacing a specific tool?

Head-to-head comparisons for each popular cloud storage & sync product.

Alternatives to Dropbox

6 vetted options · top pick Nextcloud

Straight head-to-heads

Two cloud storage & sync tools, side by side — verified facts and a plain verdict.

Nextcloud vs Syncthing→Nextcloud vs Seafile→Nextcloud vs Internxt→Nextcloud vs Proton Drive→Nextcloud vs pCloud→Syncthing vs Seafile→Syncthing vs Internxt→Syncthing vs Proton Drive→Syncthing vs pCloud→Seafile vs Internxt→Seafile vs Proton Drive→Seafile vs pCloud→Internxt vs Proton Drive→Internxt vs pCloud→Proton Drive vs pCloud→
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