Random Birthday Generator
Generate random birthdays and dates of birth within an age range.
0 to 120
0 to 120
Between 1 and 50
No birthdays generated yet
Set an age range and count, then click Generate.
About Random Birthday Generator
The Random Birthday Generator produces random dates of birth constrained to a precise age range you define. Enter a minimum and maximum age — say 18 to 65 — and the tool works backwards from today to calculate the exact date window, then picks random days within it. Each result comes formatted as a full weekday-and-date string (for example "Thursday, March 14, 1996") alongside the person's current calculated age, so you can verify at a glance that every birthday falls inside your requested range.
The most common use is seeding test databases and staging environments for software that validates age at registration — e-commerce age gates, alcohol or gambling platforms, healthcare intake forms, and financial onboarding flows. Unlike a generic random date picker, this tool understands age semantics: it will never accidentally produce a birthday that makes someone 17 years and 364 days old when you asked for 18-and-over, because it converts ages to exact date boundaries before randomising.
All generation runs entirely in your browser with no network requests and no data collection. You can generate up to 50 birthdays per batch, copy them individually or all at once, and use the plain-text output area to paste directly into a spreadsheet, SQL seed file, or CSV. There is no account, no usage limit, and no cost.
Key Features
Age-bounded date generation
Converts your minimum and maximum ages into precise date boundaries based on today's date, so every generated birthday falls strictly within the range you asked for — no off-by-one edge cases.
Calculated age displayed alongside the date
Each result shows the full formatted date and the person's current age in parentheses. You can spot-check results without doing any mental arithmetic.
Batch generation up to 50
Generate between 1 and 50 birthdays in a single click. Useful for seeding test tables, populating CSV fixtures, or creating a batch of mock user profiles in one go.
Weekday-aware date format
Output is formatted as "Weekday, Month Day, Year" (e.g. Thursday, March 14, 1996), matching the locale-aware format many registration and healthcare forms expect.
Copy individually or all at once
Click the copy icon on any single birthday to grab just that entry, or use Copy All to get the entire list as newline-separated text ready to paste into a spreadsheet or seed file.
Runs entirely in your browser
No data leaves your device. All randomisation and date maths happen client-side, making it safe to use in restricted environments or when working with sensitive demographic test data.
How to Use
Set Age Range
Enter the minimum and maximum age to define who the birthdays are for (e.g., 18 to 30).
Set Count & Generate
Enter how many random birthdays you want (1 to 50), then click Generate.
Copy & Use
Copy individual birthdays or use Copy All to grab every generated birthday at once.
Example
Set minimum age 25, maximum age 35, count 3. The tool picks random dates that make each person currently 25-35 years old, then displays the weekday-formatted birthday and their exact current age.
Min age: 25
Max age: 35
Count: 3Wednesday, July 9, 1997 (Age: 28)
Tuesday, August 22, 1995 (Age: 30)
Monday, November 18, 1991 (Age: 34)Common Use Cases
- arrow_circle_right
Seeding age-gated registration test data
Applications that enforce a minimum age at sign-up need test accounts spread across legal and illegal age brackets. This tool generates DOBs for both sides of the boundary — e.g. ages 17-18 — so you can verify that gatekeeping logic accepts and rejects correctly.
- arrow_circle_right
Populating demographic fields in mock databases
E2E test suites and staging environments often need realistic user records with plausible birth dates. Generating 50 birthdays spread across the 21-65 age band is faster and more realistic than hardcoding a handful of dates or using a generic date randomiser that might produce impossible ages.
- arrow_circle_right
Healthcare and insurance form testing
Forms for medical intake, insurance quoting, and pension eligibility apply age-specific rules at every step. Testers need DOBs that land in specific age cohorts — paediatric, adult, senior — and this tool produces cohort-scoped batches in one click.
- arrow_circle_right
Character and profile creation for fiction or games
Writers and game designers who want characters with realistic backstories need birth dates that match a character's stated age. Setting the range to a single year (e.g. min 28, max 29) gives a DOB that ages the character correctly without manual calendar arithmetic.
- arrow_circle_right
Teaching data privacy and anonymisation
Instructors covering GDPR, HIPAA, or data anonymisation need sample datasets with plausible but synthetic personal data. A batch of generated birthdays is a quick way to build a realistic-looking dataset that contains no real individuals' information.