# Free API tools, no sign-up

> Free tools you can use in the browser or call without an API key: Open Graph checker, sitemap URL extractor, Google Autocomplete, crypto prices, plus DNS, SSL and file tools from the Devino apps.

No account and no key: each IP address gets 30 runs a minute and 300 a day across all of these tools. Errors are RFC 9457 problem documents. Machine-readable list: https://app.upapi.io/api/tools · OpenAPI: https://app.upapi.io/api/tools/openapi.json

## upAPI tools

- [Open Graph checker](https://upapi.io/tools/open-graph-checker): Free Open Graph checker: see the og:title, og:description, og:image, Twitter Card tags, canonical URL and favicon any page serves to link previews. No sign-up. API: `GET https://app.upapi.io/api/tools/open-graph-checker?url=https%3A%2F%2Fgithub.com`
- [Sitemap URL extractor](https://upapi.io/apis/seo-tools/sitemap-parse): Free sitemap URL extractor: paste a sitemap.xml, sitemap index or plain-text URL list and get every URL with its lastmod, changefreq and priority. No sign-up. API: `GET https://app.upapi.io/api/tools/sitemap-url-extractor?url=https%3A%2F%2Fupapi.io%2Fsitemap.xml`
- [Google Autocomplete explorer](https://upapi.io/apis/search/google-autocomplete): Free Google Autocomplete tool: type a seed keyword and get the suggestions Google shows for it, by language and country. Useful for keyword research. No sign-up. API: `GET https://app.upapi.io/api/tools/google-autocomplete?query=api%20for`
- [Crypto price checker](https://upapi.io/apis/finance/crypto-price): Free crypto price checker: current price, market cap and 24-hour change for any CoinGecko-listed coin, in USD, EUR or any other currency. No sign-up. API: `GET https://app.upapi.io/api/tools/crypto-price?coins=bitcoin%2Cethereum`

## More free tools from the Devino apps

- [DNS provider detector](https://dodomain.io/tools/provider-detector) (DoDomain): Which DNS host serves a domain, read from its authoritative nameservers, and whether one-click setup is available there.
- [DNS propagation checker](https://dodomain.io/tools/dns-lookup) (DoDomain): One record read from the authoritative nameservers and three public resolvers side by side.
- [SPF record checker](https://dodomain.io/tools/spf-checker) (DoDomain): Parses an SPF record, walks every include and redirect, and counts DNS lookups against the limit of ten.
- [Uptime / SLA calculator](https://getuptimely.com/tools/uptime-calculator) (Uptimely): How much downtime an availability target such as 99.9% or 99.99% allows.
- [SSL certificate checker](https://getuptimely.com/tools/ssl-certificate-checker) (Uptimely): Expiry date, days left, issuer, covered hostnames and chain trust for any public host.
- [Status badge builder](https://getuptimely.com/tools/status-badge) (Uptimely): An embeddable live status badge for a public status page.
- [ElevenLabs credit calculator](https://voicelabs.now/tools/elevenlabs-credit-calculator) (VoiceLabs): ElevenLabs credits converted to minutes of speech and transcription, plan by plan.
- [Browser text-to-speech tester](https://voicelabs.now/tools/browser-text-to-speech) (VoiceLabs): Hear a sample from every text-to-speech voice your browser has, and see which are remote.
- [Marketplace seller fees in Canada](https://joinmarka.com/en/fees) (Marka): What eBay, Etsy, Amazon.ca and Facebook Marketplace keep of a sale in Canada, side by side.
- [Online file converter](https://aishorty.com/file-converter) (Shorty): Audio, video, image and PDF conversions such as MP4 to MP3, HEIC to JPG and PDF to JPG, with no sign-up.
- [YouTube video summarizer](https://aishorty.com/youtube-video-summarizer) (Shorty): Timestamped key points from a YouTube video, with no login.

Updated 2026-10-21.