🔎 Keyword research

Cross-Engine Keyword Autosuggest Explorer

Enter a seed term to see what Google, Bing and DuckDuckGo each autocomplete it to, side by side. The suggestions unique to one engine are the under-served, lower-competition keywords your competitors' single-source tools never show them.

✓ 3 engines, live Unique long-tail highlighted Free JSON API

How to find cross-engine keyword ideas

Four steps from one seed term to a deduplicated long-tail list.

Enter a seed keyword

Type the broad term you want to expand — a product, topic or question stem.

Set language and country

Pick the market you are targeting so each engine returns locally relevant completions.

Optionally enable deep mode

Turn on deep mode to append a–z to your seed and pull dozens more long-tail ideas per engine.

Compare engines and export

Read Google, Bing and DuckDuckGo side by side, focus on the suggestions unique to one engine, then copy or export to CSV.

Free keyword API

The explorer is backed by a public JSON endpoint. Pass a seed term and get back per-engine suggestions, the queries unique to each engine, the common set and a merged list.

GET /tools/api/suggest/?q=<term>&lang=en&country=us&deep=0 — q is required; lang and country default to en/us; deep=1 runs a–z expansion. Rate-limited: a burst returns HTTP 429.

cURL Python JavaScript

curl -s "https://seo.bike/tools/api/suggest/?q=seo%20tools&lang=en&country=us" \
  -H "Accept: application/json"

import requests

resp = requests.get(
    "https://seo.bike/tools/api/suggest/",
    params={"q": "seo tools", "lang": "en", "country": "us", "deep": 0},
    headers={"Accept": "application/json"},
    timeout=30,
)
data = resp.json()

print("merged ideas:", len(data["merged"]))
print("unique to Bing:", data["unique"]["bing"])
print("common to all engines:", data["common"])

const url = new URL("https://seo.bike/tools/api/suggest/");
url.search = new URLSearchParams({
  q: "seo tools",
  lang: "en",
  country: "us",
  deep: "0",
});

const res = await fetch(url, { headers: { Accept: "application/json" } });
if (res.status === 429) throw new Error("rate limited — slow down");
const data = await res.json();

console.log("merged ideas:", data.merged.length);
console.log("unique to Google:", data.unique.google);

Response shape:

{
  "term": "seo tools",
  "engines": { "google": [...], "bing": [...], "duckduckgo": [...] },
  "unique":  { "google": [...], "bing": [...], "duckduckgo": [...] },
  "common":  [...],
  "merged":  [...],
  "errors":  {}
}

Keyword autosuggest questions

Each engine builds autocomplete from its own users' search logs, so the same seed term surfaces different completions. Bing and DuckDuckGo expose demand that Google's suggestions hide, and the queries unique to one engine are often lower-competition long-tail keywords worth targeting.

Deep mode appends each letter a to z to your seed term and queries every engine again, expanding the long-tail completion space from a few ideas to dozens. It makes more requests, so use it once you have settled on a seed term.

Yes. The explorer is free and needs no signup. It reads each engine's public autocomplete endpoint live, so the suggestions are exactly what real searchers see today.

Yes. The same data powers a JSON endpoint at /tools/api/suggest/ — pass q, lang, country and deep=1, and you get back the per-engine lists, the suggestions unique to each engine, the common set and a merged list. It is rate-limited and returns 429 if you call it too fast.