NanoTools

SHA-256 and SHA-512 digests for any text (?text=). Deterministic, local, stable JSON.

Base64 encode or decode. ?op=enc|dec&data=... Tolerant to missing padding.

MD5, SHA-1, SHA-256, SHA-512 in one call. ?text=...

Cryptographically secure random number. ?min=&max= (ints, default 0..100).

Generate UUIDv4 (and optional count ?n= up to 100).

URL slug from any text. ?text=Hello%20World -> hello-world

Secure random password. ?len=16&symbols=1

Validate + pretty-print JSON. ?data={...} (urlencoded).

Text statistics: words, chars, sentences, reading time. ?text=...

Convert CSV to JSON array. ?data=<csv urlencoded>&delim=,

URL encode/decode. ?op=enc|dec&data=...

Unix timestamp <-> ISO8601 both ways. ?ts=1690000000 or ?iso=2026-01-01T00:00:00Z

Google web search. ?q=query&num=5 returns organic results with title, link, snippet.

Fetch a web page and return clean readable text. ?url=https://example.com

DNS lookup: A, AAAA, MX, TXT, NS, CNAME records for a domain. ?name=example.com&type=A

QR code generator. ?data=<text>&size=256 -> PNG as base64 in JSON.

Decode a JWT header and payload WITHOUT signature verification. ?token=<jwt>

Test a regex against text: matches with groups and positions. ?pattern=<re>&text=<text>&flags=i

Explain a cron expression: next 3 run times in UTC. ?expr=*/5 * * * *

Convert YAML to JSON. ?data=<yaml urlencoded>

Convert TOML to JSON. ?data=<toml urlencoded>

Convert Markdown to HTML (tables, fenced code). ?text=<markdown urlencoded>

Unified diff of two texts with changed line count. ?a=<text>&b=<text>

Escape or unescape HTML entities. ?op=enc|dec&data=<text>

Convert units: length, weight, volume, data size, temperature. ?value=100&from=cm&to=inch

Convert colors between hex, rgb, hsl. ?color=#ff0000 or rgb(255,0,0)

Lorem ipsum placeholder generator. ?paras=3 or ?words=50

Current weather + 7-day forecast by city name or lat/lon (open-meteo, no key needed). ?city=Moscow

ECB reference currency exchange rates. ?base=USD&symbols=EUR,GBP or ?date=2026-01-15

Domain registration data via RDAP: registrar, created/updated/expires, status, nameservers. ?domain=example.com

Parse any RSS or Atom feed into clean JSON items. ?url=<feed>&limit=10

IP geolocation and network info: country, city, ASN/org, timezone. ?ip=1.2.3.4

Google Trends interest over time for a keyword (weekly points, peak). ?q=casino&geo=US&time=12-m|5-y

Google Trends related queries: top and rising search terms for a keyword. ?q=casino&geo=&time=12-m

Google Trends interest by region/country for a keyword. ?q=casino&geo=&time=12-m

SEO snapshot of a page: title, description, OG/Twitter meta, h1s, h2 count, canonical, robots meta, lang, word count. ?url=

Audit robots.txt + sitemap.xml of a site: rules, sitemaps listed, sitemap reachable, URL counts. ?url=<site root>

Google SERP: organic results with position, ads count, related searches. ?q=&num=5&gl=us

Yandex SERP for RU-market keyword research (region by ?lr=). ?q=&lr=213

Text readability: Flesch score, level, avg sentence length, keyword density, top words. ?text=<text>&keyword=

Real browser screenshot of any page as PNG (base64), JS rendered. ?url=&width=1280&height=800&full=0|1

Render any page to PDF (A4, print background) via headless Chrome. ?url=

Render a JS-heavy page in a real browser and return the visible text. ?url=

Generate an Open Graph image 1200x630 from title/subtitle/theme. ?title=&subtitle=&theme=indigo|dark|green|red|blue

Full SEO audit report of a domain: health score 0-100, prioritized issues list, title/description/H1/canonical, robots.txt review, word count. Returns ready markdown report. ?url=https://example.com