Cron Expression Generator
Ek five-field cron expression ko visually banayein aur copy karein, ek plain-English summary aur next run times aapke browser mein dikhaye gaye.
Aapka cron expression locally aapke browser mein banta aur preview hota hai aur kuch bhi server par upload nahi hota.
Ek maujooda schedule decode karna hai? Cron Explainer try karein.
Cron Generator ke baare mein
Yeh cron expression generator aapko syntax yaad rakhne ke bajaye ek five-field crontab schedule visually banane deta hai. Har field ke liye — minute, hour, day-of-month, month, aur day-of-week — aap ek mode chunte hain: every value, every N (ek step), ek multi-select se specific values, ya ek range. Expression aapke click karte hi live update hota hai, aur month aur weekday pickers Jan aur Mon jaise names dikhate hain jabki sahi numbers emit karte hain. Result ke neeche aapko generate hua expression ek copy button ke saath milta hai, ek plain-English summary, aur aapke local timezone mein next paanch run times, taaki aap use ek crontab, CI config, ya scheduler mein paste karne se pehle schedule confirm kar sakein. Ek-click presets common cases cover karte hain jaise har paanch minutes, weekdays at 9am, aur monthly. Sab kuch aapke browser mein chalta hai, isliye jo aap banate hain woh kabhi server par upload nahi hota.
Features
- Har cron field ko chaar modes mein se ek se banayein: every, every N (step), specific values, ya ek range
- Specific minutes, hours, days, months, ya weekdays ko ek comma list ke roop mein multi-select karein
- Month aur day-of-week pickers names dikhate hain (Jan–Dec, Sun–Sat) par standard numbers emit karte hain
- Expression aapke kisi bhi field adjust karte hi live update hota hai — koi generate button nahi
- Schedule ka plain-English summary taaki aap ek nazar mein intent confirm kar sakein
- Aapke local timezone mein render kiye next paanch run times ka preview
- every minute, every 5 minutes, hourly, daily, weekdays 9am, weekly, aur monthly ke liye ek-click presets
- Taiyaar expression ko ek click mein copy karein
Cron Generator kaise use karein
- Har field ke liye ek mode chunein, ya ek common schedule se shuru karne ke liye ek preset par click karein.
- Specific ke liye, jo values chahiye unhe tap karein; Range ke liye, ek from aur to chunein; Every N ke liye, ek step enter karein.
- Field badalte hi cron expression ko live update hote dekhein.
- Schedule confirm karne ke liye plain-English summary aur next paanch run times padhein.
- Expression lene aur use apne crontab ya scheduler mein paste karne ke liye Copy par click karein.
Example
Input
minute: specific [0]
hour: specific [9]
day-of-month: every
month: every
day-of-week: range Mon–Fri
Output
0 9 * * 1-5
Ek weekday 9am schedule ko field by field banane se yeh expression banta hai.
Common errors aur troubleshooting
- Ek Range * dikhta hai kyunki from value to value ke baad hai. — from value ko to value se kam set karein (jaise 9 se 17); ek ulta range express nahi ho sakta, isliye field every par fall back kar jaata hai.
- Mode select karne ke baad bhi ek Specific field * hi padhta hai. — Kam se kam ek value chip chunein; kuch select na hone par field every (*) hi rehta hai taaki expression valid rahe.
- day-of-month aur day-of-week dono restricted hain aur job ummeed se zyada baar fire hota hai. — Standard cron tab chalta hai jab koi bhi day field match kare (OR logic), isliye ek ko every par chhod dein jab tak aapko sach mein dono na chahiye.
- Ek rare combination ke liye koi upcoming run times nahi dikhte. — Preview ek saal aage dekhta hai; Feb 30 jaisi ek month aur day-of-month pairing kabhi nahi hoti, isliye ek reachable combination chunein.
Aksar pooche jaane wale sawaal
- Paanch cron fields ka kya matlab hai?
- Order mein woh hain minute, hour, day-of-month, month, aur day-of-week. Generator har field ke liye ek token banata hai aur unhe spaces se join karke poora expression banata hai.
- Main ek job har 15 minutes mein kaise chalaaoon?
- minute field ko Every N par set karein aur 15 enter karein, baaki fields ko Every par chhodte hue. Generator */15 * * * * output karta hai aur next run times preview karta hai.
- Ek step, ek range, aur specific values mein kya farak hai?
- */5 jaisa ek step ek fixed interval par repeat hota hai, 1-5 jaisi ek range ek continuous span cover karti hai, aur 1,15 jaisi specific values exact points list karti hain. Har ek builder mein ek field mode se map hota hai.
- Kya main month aur weekday names enter karoon ya numbers?
- Aap clarity ke liye UI mein Jan ya Mon jaise names chunte hain, aur generator expression mein standard numbers (months 1-12, weekdays 0-6 jisme Sunday 0 hai) emit karta hai.
- Yeh Cron Explainer se kaise alag hai?
- Explainer ek aise expression ko decode karta hai jo aapke paas pehle se hai, jabki yeh generator fields click karke ek naya expression banata hai. Ek schedule banane ke liye ise use karein aur ek ko verify karne ke liye Explainer.
- Generation kahan hota hai?
- Poori tarah aapke browser mein. Expression, summary, aur run-time preview sab locally aapke device par compute hote hain aur kuch bhi server par nahi bheja jaata.
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