[{"data":1,"prerenderedAt":911},["ShallowReactive",2],{"content-/free-tier-saas-2025":3,"all-pages-for-dir":888,"related-/free-tier-saas-2025":889,"og-image-/free-tier-saas-2025":910},{"id":4,"title":5,"body":6,"category":871,"concepts":871,"description":872,"extension":873,"meta":874,"navigation":875,"ogImage":871,"path":876,"project_name":871,"published":877,"publishedAt":878,"seo":879,"source":871,"stem":880,"tags":881,"todo":871,"unpublished":877,"updatedAt":871,"__hash__":887},"pages/2025-12/2025-12-27/free-tier-saas-2025.md","スタートアップ必見！2025年版 無料枠が超太いSaaSサービス3選",{"type":7,"value":8,"toc":835},"minimark",[9,13,17,25,29,33,87,90,112,116,119,127,130,133,151,154,158,162,211,214,240,244,251,254,258,261,272,275,291,293,297,300,374,377,403,407,437,440,442,453,456,472,474,478,489,496,499,502,528,530,534,541,544,621,624,629,637,642,650,654,658,674,679,716,721,729,732,736,744,748,759,762,804,807,830,832],[10,11,12],"h2",{"id":12},"はじめに",[14,15,16],"p",{},"スタートアップやサイドプロジェクトを始める際、最初のハードルは「コスト」です。しかし2025年現在、驚くほど主要なSaaSサービスの無料枠は充実しています。",[14,18,19,20,24],{},"本記事では、",[21,22,23],"strong",{},"認証・データベース・分析","という3つの重要な基盤を、ほぼ無料で構築できるサービスを紹介します。",[10,26,28],{"id":27},"_1-clerk-認証基盤","1. Clerk - 認証基盤",[30,31,32],"h3",{"id":32},"無料枠の概要",[34,35,36,49],"table",{},[37,38,39],"thead",{},[40,41,42,46],"tr",{},[43,44,45],"th",{},"項目",[43,47,48],{},"無料枠",[50,51,52,63,71,79],"tbody",{},[40,53,54,58],{},[55,56,57],"td",{},"月間アクティブユーザー（MAU）",[55,59,60],{},[21,61,62],{},"10,000人",[40,64,65,68],{},[55,66,67],{},"月間アクティブ組織（MAO）",[55,69,70],{},"100組織",[40,72,73,76],{},[55,74,75],{},"組織あたりのメンバー数",[55,77,78],{},"5人",[40,80,81,84],{},[55,82,83],{},"カスタムドメイン",[55,85,86],{},"✅ 利用可能",[30,88,89],{"id":89},"特徴",[91,92,93,100,106],"ul",{},[94,95,96,99],"li",{},[21,97,98],{},"First Day Free ポリシー",": サインアップ後24時間以内に離脱したユーザーはカウントされない",[94,101,102,105],{},[21,103,104],{},"Pre-built Components",": ログイン・サインアップUIがすぐに使える",[94,107,108,111],{},[21,109,110],{},"マルチテナント対応",": B2B SaaSに必要な組織機能も無料枠に含まれる",[30,113,115],{"id":114},"pro-プランへの移行","Pro プランへの移行",[14,117,118],{},"無料枠を超えた場合:",[91,120,121,124],{},[94,122,123],{},"基本料金: $25/月",[94,125,126],{},"追加MAU: $0.02/ユーザー",[14,128,129],{},"つまり、15,000 MAUでも月額$125程度。認証の自前実装と比較すれば破格です。",[30,131,132],{"id":132},"公式リンク",[91,134,135,144],{},[94,136,137],{},[138,139,143],"a",{"href":140,"rel":141},"https://clerk.com/pricing",[142],"nofollow","Clerk Pricing",[94,145,146],{},[138,147,150],{"href":148,"rel":149},"https://clerk.com/blog/new-pricing-plans",[142],"New Pricing Plans",[152,153],"hr",{},[10,155,157],{"id":156},"_2-turso-sqliteベースのエッジdb","2. Turso - SQLiteベースのエッジDB",[30,159,161],{"id":160},"無料枠の概要2025年3月31日","無料枠の概要（2025年3月31日〜）",[34,163,164,172],{},[37,165,166],{},[40,167,168,170],{},[43,169,45],{},[43,171,48],{},[50,173,174,184,192,200],{},[40,175,176,179],{},[55,177,178],{},"行の読み取り",[55,180,181],{},[21,182,183],{},"5億回/月",[40,185,186,189],{},[55,187,188],{},"行の書き込み",[55,190,191],{},"1,000万回/月",[40,193,194,197],{},[55,195,196],{},"ストレージ",[55,198,199],{},"5GB",[40,201,202,205],{},[55,203,204],{},"データベース数",[55,206,207,210],{},[21,208,209],{},"無制限","（2025年6月〜）",[30,212,89],{"id":213},"特徴-1",[91,215,216,222,228,234],{},[94,217,218,221],{},[21,219,220],{},"クレジットカード不要",": 完全無料で始められる",[94,223,224,227],{},[21,225,226],{},"エッジロケーション",": 世界中のエッジで低レイテンシーを実現",[94,229,230,233],{},[21,231,232],{},"SQLite互換",": 既存のSQLite知識がそのまま活かせる",[94,235,236,239],{},[21,237,238],{},"libSQL",": SQLiteを拡張したオープンソースプロジェクト",[30,241,243],{"id":242},"行の読み取りとは","「行の読み取り」とは？",[14,245,246,247,250],{},"SQLiteの仕様上、「行の読み取り」は",[21,248,249],{},"スキャンされた行","を指します。クエリの結果として返される行数ではなく、インデックス検索などで参照された行数をカウントします。",[14,252,253],{},"適切なインデックス設計により、この数値を大幅に削減できます。",[30,255,257],{"id":256},"developer-プラン499月","Developer プラン（$4.99/月）",[14,259,260],{},"無料枠を超える場合:",[91,262,263,266,269],{},[94,264,265],{},"25億行読み取り/月",[94,267,268],{},"1億行書き込み/月",[94,270,271],{},"10GBストレージ",[30,273,132],{"id":274},"公式リンク-1",[91,276,277,284],{},[94,278,279],{},[138,280,283],{"href":281,"rel":282},"https://turso.tech/pricing",[142],"Turso Pricing",[94,285,286],{},[138,287,290],{"href":288,"rel":289},"https://turso.tech/blog/turso-cloud-debuts-the-new-developer-plan",[142],"Developer Plan発表",[152,292],{},[10,294,296],{"id":295},"_3-posthog-オールインワン分析プラットフォーム","3. PostHog - オールインワン分析プラットフォーム",[30,298,32],{"id":299},"無料枠の概要-1",[34,301,302,312],{},[37,303,304],{},[40,305,306,309],{},[43,307,308],{},"機能",[43,310,311],{},"無料枠/月",[50,313,314,324,332,342,350,358,366],{},[40,315,316,319],{},[55,317,318],{},"Product Analytics",[55,320,321],{},[21,322,323],{},"100万イベント",[40,325,326,329],{},[55,327,328],{},"Session Replay",[55,330,331],{},"5,000件",[40,333,334,337],{},[55,335,336],{},"Feature Flags / A/B Testing",[55,338,339],{},[21,340,341],{},"100万リクエスト",[40,343,344,347],{},[55,345,346],{},"Surveys",[55,348,349],{},"1,500回答",[40,351,352,355],{},[55,353,354],{},"Error Tracking",[55,356,357],{},"10万例外",[40,359,360,363],{},[55,361,362],{},"LLM Analytics",[55,364,365],{},"10万イベント",[40,367,368,371],{},[55,369,370],{},"Data Pipelines",[55,372,373],{},"1万イベント + 100万行",[30,375,89],{"id":376},"特徴-2",[91,378,379,385,391,397],{},[94,380,381,384],{},[21,382,383],{},"無制限のシート数",": チームメンバー何人でも追加料金なし",[94,386,387,390],{},[21,388,389],{},"無制限のユーザー追跡",": トラッキング対象ユーザー数に制限なし",[94,392,393,396],{},[21,394,395],{},"90%が無料枠内",": 大半のユーザーが課金なしで利用",[94,398,399,402],{},[21,400,401],{},"7年間のデータ保持",": 有料プランならデータを長期保存",[30,404,406],{"id":405},"具体的に何ができる","具体的に何ができる？",[408,409,410,415,420,426,432],"ol",{},[94,411,412,414],{},[21,413,318],{},": ファネル分析、コホート分析、SQLクエリ",[94,416,417,419],{},[21,418,328],{},": ユーザー行動の録画・再生",[94,421,422,425],{},[21,423,424],{},"Feature Flags",": 機能の段階的ロールアウト",[94,427,428,431],{},[21,429,430],{},"A/B Testing",": 統計的に有意な実験の実施",[94,433,434,436],{},[21,435,346],{},": アプリ内アンケート",[30,438,439],{"id":439},"従量課金の目安",[14,441,118],{},[91,443,444,447,450],{},[94,445,446],{},"Product Analytics: $0.00005/イベント（100万で約$50）",[94,448,449],{},"Session Replay: $0.005/録画（1,000件で約$5）",[94,451,452],{},"Feature Flags: $0.0001/リクエスト（100万で約$100）",[30,454,132],{"id":455},"公式リンク-2",[91,457,458,465],{},[94,459,460],{},[138,461,464],{"href":462,"rel":463},"https://posthog.com/pricing",[142],"PostHog Pricing",[94,466,467],{},[138,468,471],{"href":469,"rel":470},"https://github.com/PostHog/posthog",[142],"GitHub",[152,473],{},[10,475,477],{"id":476},"まとめ無料で構築できるスタックの全体像","まとめ：無料で構築できるスタックの全体像",[479,480,485],"pre",{"className":481,"code":483,"language":484},[482],"language-text","┌─────────────────────────────────────────────────┐\n│                  Your App                        │\n├─────────────────────────────────────────────────┤\n│  認証: Clerk (10,000 MAU)                        │\n│  DB: Turso (5億読み取り/月)                       │\n│  分析: PostHog (100万イベント + A/B Testing)      │\n└─────────────────────────────────────────────────┘\n","text",[486,487,483],"code",{"__ignoreMap":488},"",[14,490,491,492,495],{},"この3つを組み合わせれば、",[21,493,494],{},"MAU 10,000規模のプロダクトを完全無料で運用","できます。",[30,497,498],{"id":498},"他の無料枠が充実したサービス",[14,500,501],{},"本記事で紹介した3つ以外にも、無料枠が充実している以下のサービスがあります：",[91,503,504,510,516,522],{},[94,505,506,509],{},[21,507,508],{},"Vercel",": 100GB帯域幅/月、サーバーレスファンクション10万回",[94,511,512,515],{},[21,513,514],{},"Cloudflare Pages",": 無制限のリクエスト、500ビルド/月",[94,517,518,521],{},[21,519,520],{},"Supabase",": 50,000 MAU、500MB DB、1GB Storage",[94,523,524,527],{},[21,525,526],{},"Resend",": 3,000通/月のメール送信",[152,529],{},[10,531,533],{"id":532},"補足バックエンドホスティングサービス比較","補足：バックエンドホスティングサービス比較",[14,535,536,537,540],{},"FastAPI等のPythonバックエンドをデプロイする場合、サーバーレス環境（Cloudflare Workers等）では動かないケースがあります。FFmpegのようなバイナリ実行が必要な場合、",[21,538,539],{},"サーバーフル環境","が必要です。",[30,542,543],{"id":543},"比較表",[34,545,546,564],{},[37,547,548],{},[40,549,550,553,555,558,561],{},[43,551,552],{},"サービス",[43,554,48],{},[43,556,557],{},"コールドスタート",[43,559,560],{},"設定難易度",[43,562,563],{},"おすすめ度",[50,565,566,585,603],{},[40,567,568,573,576,579,582],{},[55,569,570],{},[21,571,572],{},"Render",[55,574,575],{},"750時間/月",[55,577,578],{},"あり（30秒〜1分）",[55,580,581],{},"⭐ 簡単",[55,583,584],{},"△",[40,586,587,592,595,598,600],{},[55,588,589],{},[21,590,591],{},"Railway",[55,593,594],{},"$5/月（実質無料枠）",[55,596,597],{},"なし（常時起動）",[55,599,581],{},[55,601,602],{},"⭐⭐⭐",[40,604,605,610,613,615,618],{},[55,606,607],{},[21,608,609],{},"Fly.io",[55,611,612],{},"3VM無料",[55,614,597],{},[55,616,617],{},"やや複雑",[55,619,620],{},"⭐⭐",[30,622,572],{"id":623},"render",[14,625,626],{},[21,627,628],{},"良い点:",[91,630,631,634],{},[94,632,633],{},"設定が最も簡単（GitHub連携でポチポチ）",[94,635,636],{},"無料枠が大きい（750時間/月）",[14,638,639],{},[21,640,641],{},"悪い点:",[91,643,644,647],{},[94,645,646],{},"15分アクセスないとスリープ",[94,648,649],{},"コールドスタートに30秒〜1分かかる",[30,651,653],{"id":652},"railway-推奨","Railway ⭐推奨",[14,655,656],{},[21,657,628],{},[91,659,660,663,669],{},[94,661,662],{},"設定が簡単（Renderと同等）",[94,664,665,668],{},[21,666,667],{},"常時起動","（コールドスタートなし）",[94,670,671,672],{},"プロジェクト数・サービス数",[21,673,209],{},[14,675,676],{},[21,677,678],{},"料金体系:",[34,680,681,690],{},[37,682,683],{},[40,684,685,687],{},[43,686,45],{},[43,688,689],{},"内容",[50,691,692,700,708],{},[40,693,694,697],{},[55,695,696],{},"月額",[55,698,699],{},"$5（固定サブスクリプション）",[40,701,702,705],{},[55,703,704],{},"含まれるクレジット",[55,706,707],{},"$5分のリソース使用量",[40,709,710,713],{},[55,711,712],{},"超過時",[55,714,715],{},"使用量に応じて追加課金",[14,717,718],{},[21,719,720],{},"$5 で十分すぎる理由:",[91,722,723,726],{},[94,724,725],{},"軽量なFastAPIサービスなら複数動かしても $5 で収まる",[94,727,728],{},"常時起動のアイドルコストは約 $2.2/月",[30,730,609],{"id":731},"flyio",[14,733,734],{},[21,735,628],{},[91,737,738,741],{},[94,739,740],{},"無料枠で常時起動可能（3VM）",[94,742,743],{},"エッジに近い配置で低レイテンシ",[14,745,746],{},[21,747,641],{},[91,749,750,756],{},[94,751,752,755],{},[486,753,754],{},"flyctl"," CLIのインストールが必要",[94,757,758],{},"Dockerfile が事実上必須",[30,760,761],{"id":761},"どれを選ぶべきか",[34,763,764,774],{},[37,765,766],{},[40,767,768,771],{},[43,769,770],{},"状況",[43,772,773],{},"選択",[50,775,776,785,794],{},[40,777,778,781],{},[55,779,780],{},"開発効率重視（$5/月OK）",[55,782,783],{},[21,784,591],{},[40,786,787,790],{},[55,788,789],{},"コスト0死守",[55,791,792],{},[21,793,609],{},[40,795,796,799],{},[55,797,798],{},"とにかく簡単に始めたい",[55,800,801,803],{},[21,802,572],{},"（ただしコールドスタート注意）",[30,805,132],{"id":806},"公式リンク-3",[91,808,809,816,823],{},[94,810,811],{},[138,812,815],{"href":813,"rel":814},"https://railway.com/pricing",[142],"Railway Pricing",[94,817,818],{},[138,819,822],{"href":820,"rel":821},"https://render.com/pricing",[142],"Render Pricing",[94,824,825],{},[138,826,829],{"href":827,"rel":828},"https://fly.io/docs/about/pricing/",[142],"Fly.io Pricing",[152,831],{},[14,833,834],{},"2025年は、かつてないほど低コストでプロダクトを立ち上げられる時代です。",{"title":488,"searchDepth":836,"depth":836,"links":837},2,[838,839,846,853,860,863],{"id":12,"depth":836,"text":12},{"id":27,"depth":836,"text":28,"children":840},[841,843,844,845],{"id":32,"depth":842,"text":32},3,{"id":89,"depth":842,"text":89},{"id":114,"depth":842,"text":115},{"id":132,"depth":842,"text":132},{"id":156,"depth":836,"text":157,"children":847},[848,849,850,851,852],{"id":160,"depth":842,"text":161},{"id":213,"depth":842,"text":89},{"id":242,"depth":842,"text":243},{"id":256,"depth":842,"text":257},{"id":274,"depth":842,"text":132},{"id":295,"depth":836,"text":296,"children":854},[855,856,857,858,859],{"id":299,"depth":842,"text":32},{"id":376,"depth":842,"text":89},{"id":405,"depth":842,"text":406},{"id":439,"depth":842,"text":439},{"id":455,"depth":842,"text":132},{"id":476,"depth":836,"text":477,"children":861},[862],{"id":498,"depth":842,"text":498},{"id":532,"depth":836,"text":533,"children":864},[865,866,867,868,869,870],{"id":543,"depth":842,"text":543},{"id":623,"depth":842,"text":572},{"id":652,"depth":842,"text":653},{"id":731,"depth":842,"text":609},{"id":761,"depth":842,"text":761},{"id":806,"depth":842,"text":132},null,"Clerk、Turso、PostHogの驚異的な無料枠を徹底解説。認証・データベース・分析の3大基盤を実質無料で構築する方法","md",{},true,"/free-tier-saas-2025",false,"2025-12-27T00:00:00.000Z",{"title":5,"description":872},"2025-12/2025-12-27/free-tier-saas-2025",[882,883,48,884,885,886],"SaaS","スタートアップ","Clerk","Turso","PostHog","XkDxgGXyYuIdxGsctC5xjBSt0IMrY-dtO2JLpVgM4n8",[],[890,894,898,902,906],{"title":891,"path":892,"publishedAt":893},"蔵書データベースの運用整備と、.envの正本を1Passwordに置く判断","/book-db-ops-and-secret-source-of-truth","2026-07-31T00:00:00.000Z",{"title":895,"path":896,"publishedAt":897},"決算ビートモニタリングでメモリとHDDのセクターを分離 — SNDKの会計年度末月の登録ミスが出てきた","/earnings-dynamics-sector-split-and-fye-fix","2026-07-29T00:00:00.000Z",{"title":899,"path":900,"publishedAt":901},"395ページの参考書をAI OCRでクラウドDBに取り込み、Notion自動アーカイブの計画書を固めた日","/book-ocr-and-notion-archive-plan","2026-07-15T00:00:00.000Z",{"title":903,"path":904,"publishedAt":905},"「multilingual-e5-large」の仕組みを技術的に理解する。Tursoの全文検索（FTS5）とは別物だった","/multilingual-e5-large-vs-turso-fts5","2026-07-08T00:00:00.000Z",{"title":907,"path":908,"publishedAt":909},"AIに書かせたコードを理解せずにコミットしない仕組み — 学習ゲート付き開発ループ（pre-commit × /learnクイズ × Turso）の実装と全リポジトリ適用","/learning-gate-dev-loop","2026-07-06T00:00:00.000Z","https://log.eurekapu.com/og/blog/free-tier-saas-2025.png?v=2025-12-27T00%3A00%3A00.000Z&title=%E3%82%B9%E3%82%BF%E3%83%BC%E3%83%88%E3%82%A2%E3%83%83%E3%83%97%E5%BF%85%E8%A6%8B%EF%BC%812025%E5%B9%B4%E7%89%88%20%E7%84%A1%E6%96%99%E6%9E%A0%E3%81%8C%E8%B6%85%E5%A4%AA%E3%81%84SaaS%E3%82%B5%E3%83%BC%E3%83%93%E3%82%B93%E9%81%B8&author=Kei%20Komatsu&sig=9524a901862c97a0",1785654697814]