\n Ship for free.
\n Scale when you're ready.\n

\n\n

\n A curated collection of 100% free developer tools, hosting,\n databases, and APIs. Every entry below has a genuinely usable free tier — no trials that expire in 14 days.\n

\n\n

Tools: —
Categories: —
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\n\n\n\n",[],[212],"cb5bf1f9-73cd-4b33-951b-72fa035f8a1a","favicon.svg","01a0b01a-bdc2-7765-aabb-24bdba58d843",["D",1789661122996],"",[],[221],"d65d69d6-fbe6-4261-984c-79bfbd65f279","db.ts","b921ae02-b2b5-11f1-8aa5-1607ee4eb77e",17,["D",1789662942402],"/**\n * Data layer for DevFreeStack.\n *\n * Tools live in the val's project-scoped SQLite database. `cats` is stored as a\n * comma-separated string rather than a join table — at directory scale (tens to\n * low hundreds of rows) a join adds ceremony without buying anything, and\n * filtering happens client-side anyway.\n */\nimport { sqlite } from \"https://esm.town/v/std/sqlite/main.ts\";\nimport { SEED_TOOLS } from \"./seed-data.ts\";\n\nexport const CATEGORY_IDS = [\"dns\", \"comms\", \"ai\", \"edge\", \"paas\", \"db\"] as const;\nexport const TIERS = [\"Forever Free\", \"Free Tier\", \"Open Source\"] as const;\n\nexport type CategoryId = (typeof CATEGORY_IDS)[number];\n\nexport type ToolInput = {\n name: string;\n cats: string[];\n tier: string;\n icon: string;\n url: string;\n desc: string;\n code?: { label: string; value: string } | null;\n};\n\nexport type Tool = ToolInput & { id: number; sortOrder: number };\n\n/** Thrown for bad input so the HTTP layer can return 400 with a useful message. */\nexport class ValidationError extends Error {}\n\n/* ------------------------------------------------------------------ */\n/* Schema */\n/* ------------------------------------------------------------------ */\n\nlet ready: Promise | null = null;\n\n/** Idempotent schema setup + first-run seeding. Safe to call per request. */\nexport function initDb(): Promise {\n if (!ready) ready = migrate().catch((err) => { ready = null; throw err; });\n return ready;\n}\n\nasync function migrate() {\n await sqlite.execute(`CREATE TABLE IF NOT EXISTS tools (\n id INTEGER PRIMARY KEY AUTOINCREMENT,\n name TEXT NOT NULL,\n cats TEXT NOT NULL DEFAULT '',\n tier TEXT NOT NULL DEFAULT 'Free Tier',\n icon TEXT NOT NULL DEFAULT 'wrench',\n url TEXT NOT NULL DEFAULT '',\n description TEXT NOT NULL DEFAULT '',\n code_label TEXT,\n code_value TEXT,\n sort_order INTEGER NOT NULL DEFAULT 0,\n created_at TEXT NOT NULL DEFAULT (datetime('now')),\n updated_at TEXT NOT NULL DEFAULT (datetime('now'))\n )`);\n\n // Case-insensitive uniqueness on name, so \"Neon\" and \"neon\" can't both exist.\n // Uses COLLATE NOCASE rather than an expression index on lower(name) — the\n // latter is rejected by the backing database with a 500.\n await sqlite.execute(\n `CREATE UNIQUE INDEX IF NOT EXISTS tools_name_unique ON tools (name COLLATE NOCASE)`,\n );\n\n const { rows } = await sqlite.execute(\"SELECT COUNT(*) AS n FROM tools\");\n if (Number(rows[0]?.n ?? 0) === 0) await seed();\n}\n\nasync function seed() {\n await sqlite.batch(\n SEED_TOOLS.map((t, i) => ({\n sql: `INSERT INTO tools (name, cats, tier, icon, url, description, code_label, code_value, sort_order)\n VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)`,\n args: [\n t.name,\n t.cats.join(\",\"),\n t.tier,\n t.icon,\n t.url,\n t.desc,\n t.code?.label ?? null,\n t.code?.value ?? null,\n i,\n ],\n })),\n );\n}\n\n/** Wipe and re-seed from seed-data.ts. Destructive — for development. */\nexport async function resetSeed(): Promise {\n await initDb();\n await sqlite.execute(\"DELETE FROM tools\");\n await sqlite.execute(\"DELETE FROM sqlite_sequence WHERE name = 'tools'\");\n await seed();\n return SEED_TOOLS.length;\n}\n\n/* ------------------------------------------------------------------ */\n/* Row mapping */\n/* ------------------------------------------------------------------ */\n\ntype Row = Record;\n\nfunction toTool(row: Row): Tool {\n const label = row.code_label == null ? \"\" : String(row.code_label);\n const value = row.code_value == null ? \"\" : String(row.code_value);\n return {\n id: Number(row.id),\n name: String(row.name),\n cats: String(row.cats).split(\",\").map((c) => c.trim()).filter(Boolean),\n tier: String(row.tier),\n icon: String(row.icon),\n url: String(row.url),\n desc: String(row.description),\n code: value ? { label: label || \"Code\", value } : null,\n sortOrder: Number(row.sort_order),\n };\n}\n\n/* ------------------------------------------------------------------ */\n/* Validation */\n/* ------------------------------------------------------------------ */\n\nfunction str(value: unknown, field: string, { max = 2000, required = true } = {}): string {\n const s = typeof value === \"string\" ? value.trim() : \"\";\n if (required && !s) throw new ValidationError(`${field} is required`);\n if (s.length > max) throw new ValidationError(`${field} must be ${max} characters or fewer`);\n return s;\n}\n\nexport function validate(input: unknown, partial = false): Partial {\n if (typeof input !== \"object\" || input === null) {\n throw new ValidationError(\"Expected a JSON object\");\n }\n const body = input as Record;\n const out: Partial = {};\n\n if (!partial || \"name\" in body) out.name = str(body.name, \"Name\", { max: 80 });\n if (!partial || \"desc\" in body) out.desc = str(body.desc, \"Description\", { max: 400 });\n\n if (!partial || \"url\" in body) {\n const url = str(body.url, \"URL\", { max: 500 });\n let parsed: URL;\n try {\n parsed = new URL(url);\n } catch {\n throw new ValidationError(\"URL must be a valid absolute URL, e.g. https://example.com\");\n }\n if (parsed.protocol !== \"http:\" && parsed.protocol !== \"https:\") {\n throw new ValidationError(\"URL must start with http:// or https://\");\n }\n out.url = url;\n }\n\n if (!partial || \"tier\" in body) {\n const tier = str(body.tier, \"Tier\", { max: 40 });\n if (!(TIERS as readonly string[]).includes(tier)) {\n throw new ValidationError(`Tier must be one of: ${TIERS.join(\", \")}`);\n }\n out.tier = tier;\n }\n\n if (!partial || \"cats\" in body) {\n const raw = body.cats;\n const cats = Array.isArray(raw)\n ? raw.map((c) => String(c).trim()).filter(Boolean)\n : String(raw ?? \"\").split(\",\").map((c) => c.trim()).filter(Boolean);\n if (cats.length === 0) throw new ValidationError(\"Pick at least one category\");\n const bad = cats.filter((c) => !(CATEGORY_IDS as readonly string[]).includes(c));\n if (bad.length) throw new ValidationError(`Unknown category: ${bad.join(\", \")}`);\n out.cats = [...new Set(cats)];\n }\n\n if (!partial || \"icon\" in body) {\n const icon = str(body.icon, \"Icon\", { required: false, max: 60 });\n out.icon = icon || \"wrench\";\n }\n\n if (!partial || \"code\" in body) {\n const raw = body.code;\n if (raw == null || raw === \"\") {\n out.code = null;\n } else if (typeof raw === \"object\") {\n const c = raw as Record;\n const value = str(c.value, \"Code value\", { required: false, max: 120 });\n out.code = value ? { label: str(c.label, \"Code label\", { required: false, max: 40 }) || \"Code\", value } : null;\n } else {\n out.code = { label: \"Code\", value: str(raw, \"Code value\", { max: 120 }) };\n }\n }\n\n return out;\n}\n\n/* ------------------------------------------------------------------ */\n/* CRUD */\n/* ------------------------------------------------------------------ */\n\nexport async function listTools(): Promise {\n await initDb();\n const { rows } = await sqlite.execute(\n \"SELECT * FROM tools ORDER BY sort_order ASC, lower(name) ASC\",\n );\n return rows.map(toTool);\n}\n\nexport async function getTool(id: number): Promise {\n await initDb();\n const { rows } = await sqlite.execute({ sql: \"SELECT * FROM tools WHERE id = ?\", args: [id] });\n return rows.length ? toTool(rows[0]) : null;\n}\n\nexport async function countTools(): Promise {\n await initDb();\n const { rows } = await sqlite.execute(\"SELECT COUNT(*) AS n FROM tools\");\n return Number(rows[0]?.n ?? 0);\n}\n\nexport async function createTool(input: ToolInput): Promise {\n await initDb();\n const { rows } = await sqlite.execute(\n \"SELECT COALESCE(MAX(sort_order), -1) AS max FROM tools\",\n );\n const nextOrder = Number(rows[0]?.max ?? -1) + 1;\n\n const result = await sqlite.execute({\n sql: `INSERT INTO tools (name, cats, tier, icon, url, description, code_label, code_value, sort_order)\n VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)`,\n args: [\n input.name,\n input.cats.join(\",\"),\n input.tier,\n input.icon,\n input.url,\n input.desc,\n input.code?.label ?? null,\n input.code?.value ?? null,\n nextOrder,\n ],\n });\n\n return (await getTool(Number(result.lastInsertRowid)))!;\n}\n\nexport async function updateTool(id: number, input: ToolInput): Promise {\n await initDb();\n const existing = await getTool(id);\n if (!existing) return null;\n\n await sqlite.execute({\n sql: `UPDATE tools SET name = ?, cats = ?, tier = ?, icon = ?, url = ?, description = ?,\n code_label = ?, code_value = ?, updated_at = datetime('now')\n WHERE id = ?`,\n args: [\n input.name,\n input.cats.join(\",\"),\n input.tier,\n input.icon,\n input.url,\n input.desc,\n input.code?.label ?? null,\n input.code?.value ?? null,\n id,\n ],\n });\n\n return getTool(id);\n}\n\nexport async function deleteTool(id: number): Promise {\n await initDb();\n const existing = await getTool(id);\n if (!existing) return false;\n await sqlite.execute({ sql: \"DELETE FROM tools WHERE id = ?\", args: [id] });\n return true;\n}\n\n/** Translate a SQLite unique-constraint failure into a friendly message. */\nexport function isDuplicateNameError(err: unknown): boolean {\n return err instanceof Error && /UNIQUE constraint failed/i.test(err.message);\n}",[],[228],"83bf9676-667d-4d05-9596-d3be545befdf","admin.html","f5fc0f66-b2b5-11f1-b09e-1607ee4eb77e",["D",1789701953042],6,"\n\n\n\n\nDevFreeStack — Admin\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n

\n \n \n \n \n \n DevFreeStack\n \n \n \n Admin\n \n

\n —\n \n View site\n \n \n

\n\n

\n\n \n \n\n \n

Authenticated admin session

\n This dashboard uses your Val Town account session. The reusable admin key is no longer stored in the browser.\n

\n Val Town OAuth\n

\n\n

\n\n \n

Add a tool

\n \n

\n\n \n

Directory

\n \n \n

\n \n \n \n \n \n \n \n \n \n \n \n

Name	Categories	Tier	Code	Actions

No tools yet — add one on the left.

\n\n

\n\n\n\n",[],[236],"b937b263-fb3e-49b1-9095-1f02d6759f14","README.md","01a0b01a-bdc1-7547-bddc-df66332aec08",32,["D",1789664143855],"# DevFreeStack\n\nA curated directory of **100% free** developer tools, infrastructure, and services — hosting, databases, DNS, email APIs, and AI coding assistants.\n\n**No trials that expire in 14 days. No credit card required.**\n\n[Open the live site →](url:index.html) · [Admin →](url:admin.html)\n\n---\n\n## Architecture\n\nTools live in SQLite, not in the HTML. The page fetches them at runtime, so adding an entry is a form submission rather than a code change.\n\n```mermaid\nflowchart LR\n A[Browser] -->|GET /| B[main.tsx]\n A -->|GET /api/tools| B\n C[Admin UI] -->|POST/PUT/DELETE + X-Admin-Key| B\n B -->|static files| D[index.html / admin.html]\n B -->|reads & writes| E[(SQLite tools)]\n```\n\n| File | Role |\n| --- | --- |\n| [`main.tsx`](url:main.tsx) | Router — `/api/*` handled here, everything else served statically |\n| [`db.ts`](url:db.ts) | Schema, validation, CRUD |\n| [`seed-data.ts`](url:seed-data.ts) | Initial 26 tools (used only to seed an empty table) |\n| [`index.html`](url:index.html) | Public directory — fetches `/api/tools` |\n| [`admin.html`](url:admin.html) | Add / edit / delete tools |\n| `favicon.svg` | Site icon |\n\n## Editing tools\n\nThe admin UI is at **[`/admin.html`](url:admin.html)** (not linked from the public site, and marked `noindex`).\n\nWrites require an `ADMIN_KEY` environment variable. Reads are public; without the key configured the API rejects every create/update/delete with a `503`, and the admin page shows a setup banner. Enter the key once and the page stores it in `localStorage` for next time.\n\n👉 Add `ADMIN_KEY` here: https://www.val.town/x/vijevira/devfreestack/environment-variables?key=ADMIN_KEY\n\n### API\n\n| Method | Path | Auth | Purpose |\n| --- | --- | --- | --- |\n| `GET` | `/api/tools` | public | List all tools |\n| `GET` | `/api/status` | public | Write availability, count, category & tier vocabulary |\n| `POST` | `/api/tools` | `X-Admin-Key` | Create |\n| `PUT` | `/api/tools/:id` | `X-Admin-Key` | Update |\n| `DELETE` | `/api/tools/:id` | `X-Admin-Key` | Delete |\n\nValidation happens server-side (`validate()` in `db.ts`): name and description required, URL must be a valid absolute `http(s)` URL, tier must be one of the three known values, at least one category required. Names are unique case-insensitively. Failures return `400` with a human-readable message, `409` on a duplicate name.\n\n## Data model\n\n```sql\nCREATE TABLE tools (\n id INTEGER PRIMARY KEY AUTOINCREMENT,\n name TEXT NOT NULL,\n cats TEXT NOT NULL, -- comma-separated category ids\n tier TEXT NOT NULL,\n icon TEXT NOT NULL, -- Lucide icon name\n url TEXT NOT NULL,\n description TEXT NOT NULL,\n code_label TEXT, -- optional invite/referral code\n code_value TEXT,\n sort_order INTEGER NOT NULL,\n created_at TEXT NOT NULL,\n updated_at TEXT NOT NULL\n);\n```\n\n`cats` is a comma-separated string rather than a join table — at directory scale it saves ceremony, and filtering happens client-side anyway.\n\n**Categories:** `dns`, `comms`, `ai`, `edge`, `paas`, `db`. A tool may belong to several (Wasmer.io is both `edge` and `paas`), and it then appears under each of those pills.\n\n**Tiers:** `Forever Free` (green), `Free Tier` (blue), `Open Source` (violet).\n\n### Invite & referral codes\n\nThe optional `code` field renders a click-to-copy chip on the card, and its value is included in the search index — so pasting `ESB9EDBVDE` into the search bar finds DNSHE.\n\n## Public site features\n\n- **Live search** across name, description, tier, category labels, and code values\n- **Category pills** with live counts, plus a **Saved** filter backed by `localStorage`\n- **Bookmarks** — star any card; persists across reloads\n- **Click-to-copy** for both the tool URL and any invite code\n- Keyboard: `/` focuses search, `Esc` clears it\n- Loading, error-with-retry, and empty states\n\n## Seeding\n\n`db.ts` seeds from `seed-data.ts` on first run, only when the `tools` table is empty. Editing `seed-data.ts` afterwards has no effect on a populated database — use the admin UI, or call `resetSeed()` (destructive: wipes the table and re-inserts the original 26).\n\n## Publishing to GitHub\n\nThe repo at [github.com/vijevira/devfreestack](https://github.com/vijevira/devfreestack) is a\n**mirror, not the source of truth** — the val is.\n\n[`publish-to-github.ts`](url:publish-to-github.ts) syncs this val's files to the repo. Click Run: it\nwalks every file, compares each against what's on GitHub, and commits only what changed. Safe to\nre-run whenever you edit the directory here.\n\nRequires a `GITHUB_TOKEN` environment variable with write access to the repo — classic token with\n`repo` scope, or a fine-grained token with **Contents: Read and write**.\n\n👉 Add `GITHUB_TOKEN` here: https://www.val.town/x/vijevira/devfreestack/environment-variables?key=GITHUB_TOKEN\n\nOptional overrides: `GITHUB_REPO` (defaults to `vijevira/devfreestack`) and `GITHUB_BRANCH`\n(defaults to the repo's default branch).\n\nTwo things it deliberately does not do:\n\n- **It never publishes itself.** `publish-to-github.ts` is in the sync's skip list, so the repo\n contains only the project.\n- **It never deletes.** Removing a file here leaves it on GitHub — delete it there by hand.\n\n## Contributing\n\nSuggestions arrive as GitHub issues filed through\n[`.github/ISSUE_TEMPLATE/suggest-a-tool.yml`](.github/ISSUE_TEMPLATE/suggest-a-tool.yml).\nThe form's fields mirror the database schema (`name`, `url`, `cats[]`, `tier`, `description`, `code`),\nso accepting one is a copy-paste into the admin UI rather than a transcription job. Issues land\nlabelled `suggestion`.\n\nThree entry points on the site link to it:\n\n| Placement | Why |\n| --- | --- |\n| Header button | Always visible, one click from anywhere |\n| Empty state | Highest intent — they searched for something we don't have |\n| Footer | Conventional place to look |\n\nThere is no in-app form and no suggestion database. Moderation, spam handling, notifications and\nthreaded discussion are all GitHub's job, which is the whole reason for going this route.\n\n## Disclosure\n\nSome outbound links carry referral or invite parameters (`?r=`, `?referralCode=`, invite codes). They cost the visitor nothing and never change what a tool's free tier includes — the directory only ever lists tools that are genuinely free to use.\n\n## Notes\n\nFree tiers change constantly. Every vendor's current terms are the source of truth — this directory links out rather than mirroring pricing pages.\n\n---\n\nBuilt for developers who love free infrastructure.",[],[244],"a6665666-ab5d-4f89-b94a-117a0990fcae",".gitignore","9e13c4d6-b2b7-11f1-8356-1607ee4eb77e",23,["D",1789663712584],"# Secrets\n#\n# Environment variables (ADMIN_KEY and anything you add later) live in Val Town's\n# UI, not in a file — so there is normally nothing to leak here. This covers the\n# case where you create a local .env for testing.\n.env\n.env.*\n!.env.example\n\n# Editor / OS\n.DS_Store\n.idea/\n.vscode/\n\n# Logs\n*.log\nnpm-debug.log*",[],[252],"b888127e-409c-47d7-a771-64aca7683d54","suggest-a-tool.yml","95dff708-b2b7-11f1-b195-1607ee4eb77e",["D",1789663698826],"name: Suggest a tool\ndescription: Propose a developer tool, service or free tier that belongs in the directory\ntitle: \"[Tool] \"\nlabels: [\"suggestion\"]\nbody:\n - type: markdown\n attributes:\n value: |\n Thanks for contributing. The directory only lists tools that are **genuinely free to use** —\n no 14-day trials, no \"free forever\" plans that quietly expired.\n\n - type: input\n id: name\n attributes:\n label: Tool name\n description: The name as it should appear on the card.\n placeholder: Neon\n validations:\n required: true\n\n - type: input\n id: url\n attributes:\n label: Website URL\n description: Full URL, including any invite or referral parameters.\n placeholder: https://neon.tech/\n validations:\n required: true\n\n - type: dropdown\n id: category\n attributes:\n label: Category\n description: Pick one or more. Choose the closest fit if you're unsure.\n multiple: true\n options:\n - DNS & Domain\n - Communication & Email\n - AI & Coding\n - Frontend & Edge\n - Backend & PaaS\n - Databases & Caching\n validations:\n required: true\n\n - type: dropdown\n id: tier\n attributes:\n label: Free tier type\n options:\n - Forever Free — free indefinitely, no time limit\n - Free Tier — a permanent free plan with usage caps\n - Open Source — self-hostable, the project itself is free\n - Not sure\n validations:\n required: true\n\n - type: textarea\n id: description\n attributes:\n label: Description\n description: One or two sentences on what the free tier actually gets you. This text goes straight onto the card.\n placeholder: Serverless Postgres with instant branching, scale-to-zero compute and a database-per-preview workflow.\n validations:\n required: true\n\n - type: input\n id: code\n attributes:\n label: Invite or referral code (optional)\n description: Leave blank unless the tool has one. It renders as a click-to-copy chip on the card.\n placeholder: ESB9EDBVDE\n validations:\n required: false\n\n - type: checkboxes\n id: confirmations\n attributes:\n label: Before you submit\n options:\n - label: This tool is genuinely free to use — no expiring trial and no credit card required.\n required: true\n - label: I've checked it isn't already listed in the directory.\n required: true",[],[18,66,260],["D",1789663698826],[173],[18,66],["D",1789663698826],[172],[18],["D",1789660937610],["D",1789664470421],{"_11":12,"_126":72},{"_11":12,"_122":72,"_71":72,"_31":70,"_123":124,"_125":30},{"_39":113,"_13":16,"_33":36,"_114":75,"_115":-5,"_116":-5,"_117":-5,"_118":-5,"_119":-5,"_120":14,"_121":12},"ctx",{"_54":-5,"_145":310,"_311":312,"_313":314,"_315":30,"_316":30,"_317":30,"_318":24,"_319":-5,"_320":-7,"_321":-7,"_322":26,"_323":30,"_324":30,"_325":-5,"_326":30,"_327":30,"_328":30,"_329":-5},"ENV",{"_281":282,"_283":284,"_285":16,"_286":287,"_288":289,"_290":291,"_292":293,"_294":295,"_296":297,"_298":299,"_300":301,"_302":303,"_304":305,"_306":307,"_308":309},"REACT_APP_SENTRY_DSN","https://586020d86f05489db63a554690acf1e9@o1398359.ingest.sentry.io/6724499","RENDER_GIT_COMMIT","71c1b20804b3232a7e513be260cfffc1932a9e97","RENDER_GIT_BRANCH","POSTHOG_API_TOKEN","phc_nmoyuAkStEZuUp69rYlg1DZgrIt19Gx0Y4Hwf8tGgJP","POSTHOG_API_HOST","https://wart.val.town","WEB_API_TEMPLATE","https://{val}.web.val.run","APP_URL","https://www.val.town","MODULE_URL","https://esm.town","VANITY_WEB_API_TEMPLATE","https://{label}.val.run/","DENOLS_URL","https://lsp.val.town","NODE_ENV","production","CLOUDFLARE_TURNSTILE_SITE_KEY","0x4AAAAAACtaIZJH7s9rBMZ6","GOOGLE_CLIENT_ID","875989696899-jtsqkhlbdv5jrlsk8631p7ipjg3c6o62.apps.googleusercontent.com","STRIPE_PUBLISHABLE_KEY","pk_live_51N2zvWEpZTTLipIkVEwXrUG9AT0yeOOEYxszarZT1jpsZV58Ly6wlg3SltZpHN26CUalOBmUSY7adQRQiSkCZz2500qSXNkf8Y","API_URL","https://api.val.town",[],"preferencesKeybindings","default","preferencesTheme","light","preferencesFixers","preferencesCopilot","preferencesSelectionAi","preferencesCloseBrackets","preferencesChatPanelState","preferencesDprint","preferencesDenofmt","notificationCount","flagDenols","isBusinessOrgMember","businessOrgHandle","isBusinessOrgAdmin","isHigherTownieTier","navCollapsed","currentOrgId"]

\n Ship for free.\n Scale when you're ready.\n

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\n Ship for free.
\n Scale when you're ready.\n

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