Tools you can use without making an account — A service, not software

14 match your filters — 14 of them answered our check today.

Watching this group for 20 days · how we check

This week1 new arrival

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Developers3Freelancers2

FreeCustom.Email

Live

Instant, no-signup temporary email aliases with rotating domains to dodge blacklists, plus a public API for developers who want to build it into their own workflows.

FreeNo sign-upData stays with youOpen source
What to know▼
How it works
Creates custom, instant temporary email aliases (any inbox name) without sign-up, receiving emails in real-time from multiple rotating domains to avoid blacklists; also offers a public API and open-source frontend.
What's different
Rotating domains to avoid blacklists, plus no popups, timers, or tracking, unlike traditional temp mail tools.
Pricing
Free.
Best for
People needing disposable email for sign-up verifications or testing, and developers who want to build disposable email into their own workflows via the API.

Watched for 14 days · last checked 8d ago

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Cito

Live

A free academic-paper search API over 236M papers with an MCP endpoint, built so AI agents like Claude Code can do literature research without hitting rate limits.

FreeNo sign-up
What to know▼
How it works
A hybrid search engine over the Semantic Scholar corpus — 236M papers in the keyword index, 146M with dense vectors — fused with RRF and reranked by a cross-encoder, with a plain JSON API and a native MCP endpoint.
What's different
Built specifically so AI agents like Claude Code can run literature research without hitting the rate limits that other academic APIs impose.
Pricing
Free web search with no signup.
Best for
AI agents and developers doing deep academic literature research.

Watched for 11 days · last checked 5d ago

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onestore.link

Live

A free smart-link service that automatically routes iPhone visitors to the App Store and Android visitors to Google Play, even inside TikTok's in-app browser; a no-SDK replacement for Firebase Dynamic Links.

FreeNo sign-up
What to know▼
How it works
Turns one URL into a smart link that automatically sends iPhone visitors to the App Store and Android visitors to Google Play, and works inside in-app browsers like TikTok and Instagram.
What's different
Positioned as a free, no-SDK drop-in replacement for Firebase Dynamic Links.
Pricing
Free, no signup to start.
Best for
App marketers sharing a single link across TikTok, Instagram, and other in-app browsers who need it to route correctly to each app store.

Watched for 17 days · last checked today

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FluxRadar

Live

A free, no-signup web tool bundling ping, DNS, WHOIS, SSL and HTTP header checks in one place, built for developers, sysadmins and hosting providers.

FreeNo sign-up
What to know▼
How it works
A web tool running server-side ping tests, DNS lookup, IP lookup, reverse DNS, WHOIS, SSL checks and HTTP header analysis, all from one interface.
Pricing
Free, no registration required.
Best for
Developers, sysadmins, DevOps teams and hosting providers who need quick network diagnostics without installing separate tools.

Watched for 16 days · last checked 10d ago

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Accessibility Audit — WCAG Compliance

Live

A paid WCAG accessibility audit delivered as a report within 24 hours, no account or install needed. For any site owner who needs a compliance check, not ongoing monitoring.

No sign-upNothing to install
What to know▼
How it works
You submit your website and get back a 16-point WCAG accessibility audit as a styled report within 24 hours.
Pricing
Paid audit; delivered per request rather than as a subscription.
Best for
Site owners who need a one-off compliance check, not ongoing accessibility monitoring.

Watched for 16 days · last checked 10d ago

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Finisma

Live

Converts PDF invoices into Germany's mandatory ZUGFeRD/Factur-X e-invoice format, and verifies existing ones — a narrow, free compliance tool, not a general invoicing app.

FreeNo sign-up
What to know▼
How it works
Converts a PDF invoice into a compliant ZUGFeRD/Factur-X e-invoice (PDF/A-3 with an embedded EN 16931 XML payload), and verifies existing ZUGFeRD/Factur-X PDFs with structural checks and a human-readable parsed view. LLM-based field extraction is reviewed and corrected by the user before conversion.
What's different
Built specifically for Germany's E-Rechnungspflicht mandate, requiring B2B companies to receive e-invoices since 2025 and issue them from 2027 or 2028.
Pricing
Free, no signup, no credit card.
Best for
German B2B companies needing to convert or verify e-invoices for the ZUGFeRD/Factur-X mandate.

Watched for 12 days · last checked 2d ago

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BiteBuddy

Live

Reads restaurant reviews for you and gives a quick verdict on what to order, with an AI waiter to ask questions first — free, no sign-up.

FreeNo sign-up
What to know▼
How it works
Reads restaurant reviews and gives a quick verdict on what's popular and what to order based on food you like; includes an AI 'waiter' you can ask questions before visiting.
What's different
Summarizes reviews into a direct ordering recommendation instead of leaving you to read them yourself.
Pricing
Free to try, no sign-up needed.
Best for
Diners who want a quick recommendation on what to order without reading through reviews.

Watched for 14 days · last checked 2d ago

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Appdex

Live

Looks up estimated monthly revenue and downloads for any iOS app, with an honest confidence label — verified, calibrated or modeled — instead of a fake-precise number. Free to search.

FreeNo sign-up
What to know▼
How it works
Estimates monthly revenue and downloads for 1M+ iOS apps, with each figure carrying a confidence label (verified, calibrated or modeled) and a range instead of a single precise number; verified figures come from real developer disclosures and everything recomputes nightly from live App Store signals.
What's different
Labels each estimate's confidence level instead of presenting all numbers as equally precise.
Pricing
Headline estimates are free to look up, no login required.
Best for
Founders and indie developers who want a market-size read on any iOS app.

Watched for 16 days · last checked 2d ago

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CryptoLiox

Live

An instant crypto swap exchange for Bitcoin, Ethereum and 500+ other coins with no signup or KYC required — a straightforward token-swap tool, not a full trading platform.

No sign-up
What to know▼
How it works
An instant exchange for swapping Bitcoin, Ethereum, USDT, BNB, Solana and 500+ other cryptocurrencies.
What's different
No registration or KYC required.
Best for
People who want a quick token swap without creating an account or verifying identity.
Watch out
No KYC/registration means fewer identity safeguards than a typical exchange — worth weighing against your own risk tolerance.

Watched for 15 days · last checked 2d ago

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Bleek.dev

Live

A free web scanner that checks apps built with Lovable, Bolt or v0 for leaked API keys, open databases and missing security headers, no signup needed.

FreeNo sign-up
What to know▼
How it works
Scans apps built with tools like Lovable, Bolt or v0 for issues those builders tend to skip: leaked API keys, publicly readable databases, and missing security headers.
What's different
Targets the specific gaps left by AI app-building tools rather than doing generic security scanning.
Pricing
Free, no signup.
Best for
People who built an app with an AI app builder and want a quick check for exposed keys or open databases.

Watched for 17 days · last checked 2d ago

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ScopeQuill

Live

Free tool for freelancers and small businesses to generate Statements of Work, invoices and quotes in minutes with no signup.

FreeNo sign-up
What to know▼
How it works
Generates professional Statements of Work, invoices, and quotes in minutes.
Pricing
Free, with no signup required.
Best for
Freelancers and small businesses who need quick, professional-looking client documents without paying for or signing up to a tool.

Watched for 18 days · last checked 9d ago

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aipainting

Live

A free AI image generator offering multiple models and one-click editing presets across 8 interface languages.

FreeNo sign-up
What to know▼
How it works
A multi-language AI image generator with 6 models, 12 one-click presets, and 8 built-in editing tools, in 8 interface languages.
Pricing
Free, no registration required.
Watch out
Generated images are deleted after 10 minutes.

Watched for 10 days · last checked 4d ago

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Zapnote

Live

Auto-generates a personalized co-branded landing page for a specific prospect, meant to help sales and business-development teams book more meetings.

No sign-up
What to know▼
How it works
Generate a co-branded microsite in seconds by providing your website URL and a prospect's URL, producing a customized landing page for outreach.
Best for
Sales and business-development teams doing prospecting who want a personalized page per prospect instead of a generic pitch deck.

Watched for 18 days · last checked today

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Vaend

Live

Free browser-based bundle of 50+ business tools: invoices, GST calculators, PDF and image utilities, QR codes.

FreeNo sign-upNothing to installNo ads
What to know▼
How it works
Bundles 50+ browser-based tools — invoice/receipt generators, GST calculators, PDF merge/split/compress, image resize/convert, QR/barcode generators, and document templates — running locally with no sign-up.
Pricing
Free.
Best for
Shopkeepers, freelancers, and small teams juggling many single-purpose tool sites.

Watched for 3 days · last checked 2d ago

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