Nano ID Generator Online

Apne browser mein hi custom size aur alphabet ke saath URL-safe, collision-resistant Nano IDs generate karein.

Nano ID Generator poori tarah aapke browser mein chalta hai. Har id Web Crypto API se locally generate hoti hai aur kuch bhi ArrayKit par upload nahi hota.

Banaya aur maintain kiya: Udit Agarwal

UUID Generator Kholein

Nano ID ke baare mein

Nano ID Generator short, URL-safe, collision-resistant unique identifiers banata hai, wahi rejection-sampling algorithm use karke jo popular nanoid library use karti hai. Default mein yeh 64-character url-safe alphabet se ek 21-character id banata hai, jo UUID jitni hi collision resistance deta hai lekin karib ek-tihai length mein. Aap size ko chhota-bada kar sakte hain, ek saath kai ids generate kar sakte hain, aur apna custom alphabet bhi laga sakte hain — jaise sirf digits, ya phone par bole jaane wale ids ke liye case-insensitive set. Yeh database keys, session tokens, short link slugs, aur har jagah kaam aata hai jahan UUID zyada lamba lagta ho. Sab kuch aapke browser mein locally chalta hai, isliye koi bhi id kisi server tak tab tak nahi jaati jab tak aap use karne ka faisla na karein.

Features

  • Default 21-character, 64-character alphabet ke saath URL-safe Nano IDs generate karta hai
  • Har id ke liye 2 se 128 characters tak adjustable size
  • Ek click mein 500 tak Nano IDs ka batch generate karein
  • Custom alphabet support — output ko digits, hex, ya kisi bhi character set tak restrict karein
  • Unbiased rejection sampling naive random-index generators ke modulo bias se bachata hai
  • Har line mein ek id, code, spreadsheets, ya migrations mein copy-paste karne ke liye ready
  • Har id ke liye aapke browser ka cryptographic random number generator use karta hai
  • Poori tarah aapke device par chalta hai — koi bhi id kabhi server ko nahi bheji jaati

Nano ID kaise use karein

  1. Id size (default 21) set karein aur kitni ids chahiye woh batayein
  2. Chahein to alphabet ko apne character set se replace karein
  3. Apne browser ke crypto RNG se naye ids ke liye Generate par click karein
  4. List copy karein, ya naye batch ke liye dobara Generate par click karein

Example

Input

size = 21

Output

V1StGXR8_Z5jdHi6B-myT

Default 64-character url-safe alphabet se banaya gaya ek 21-character Nano ID.

Common errors aur troubleshooting

  • Custom alphabet field reject ho jaata hai ya error deta hai. — Nano ID Generator ko alphabet mein kam se kam 2 unique characters chahiye; duplicate characters generate karne se pehle apne aap hata diye jaate hain.
  • Chhote custom alphabet se generate ki gayi ids type karne mein expected se lambi lagti hain. — Chhote alphabet ko same collision resistance ke liye zyada characters chahiye hote hain — alphabet restrict karte waqt size badha dein, jaise sirf digits use karte waqt.
  • Pata nahi kitni Nano IDs bina collision ke safely generate ki ja sakti hain. — Default 21-character size par ek single collision ki 1% chance tak pahunchne ke liye aapko roughly ek trillion ids per second, 1000 saal tak generate karni padengi — size tabhi kam karein jab aap bhi bahut kam ids expect kar rahe hon.

Aksar pooche jaane wale sawaal

Nano ID kya hota hai?
Nano ID ek short, URL-safe, random unique identifier hai, aam taur par 21 characters lamba, jo cryptographically secure randomness se generate hota hai. Yeh ek UUID jaisi collision resistance kaafi chhoti string mein deta hai.
Nano ID, UUID se kaise alag hai?
UUID ek fixed 36-character format hai jisme defined structure (version, variant bits) hota hai. Nano ID ka koi fixed structure nahi hota — aap size aur alphabet khud choose karte hain — aur default settings par chhota hote hue bhi collisions ke against utna hi safe rehta hai.
Kya Nano ID Generator custom alphabet use kar sakta hai?
Haan. Alphabet field ko kisi bhi unique characters ke set se replace karein — jaise sirf digits, hex characters, ya case-insensitive set — aur generator sirf usi set se ids nikaalega.
Kya Nano ID Generator mujhse banaayi gayi ids kahin upload karta hai?
Nahi. Har Nano ID aapke browser ke cryptographic random number generator se locally generate hota hai. Kuch bhi server ko nahi bheja jaata, isliye aapki banaayi ids sirf aapke device par hi visible hoti hain.
Kya Nano ID Generator ka output kuch characters ki taraf biased hota hai?
Nahi. Yeh unbiased rejection sampling use karta hai, jo alphabet ke range se bahar aane wale random bytes ko modulo se reduce karne ke bajaye discard kar deta hai, isliye alphabet ke har character ke aane ka equal chance hota hai.
Nano ID ke liye kaunsa size choose karna chahiye?
Default 21-character size ek safe general-purpose choice hai. Chhoti ids (10-14 characters) kam volume wale short link slugs ke liye achhi rehti hain; lambi ids high-volume systems ke liye suitable hain jinhe zyada collision resistance chahiye.

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