How To Process

Register and log in, with your Google or Microsoft account.
After logging in: To Manage Your Account: Click on Manage Your Account at the top right.
To Subscribe: On your Account Create Subscription page, choose a subscription plan and follow the prompts.
Go to the Home page.
Type or paste in your set of input strings, that you want to learn the regexes for, into the text box provided.
Type in your Learn event name/description, in the box provided.
Optional (but recommended): Tick the checkbox for: "I allow you to store my strings and regexes, and I therefore get a 30% discount for this Learn Event."
Click the button to calculate the cost of the learn event.
Click the button to pay and generate the regexes. The calculated price will be subtracted from your subscription account.
You will receive an email with the learned regexes, within an hour. Input strings near the top limits may take up to a few days. The email will be send to the email address you logged in with. Expect an email from "results@mlregex.com". ***Please remember to check your Spam folder as well!***
Refund Policy: We are confident MLREGEX will learn the most optimal regex for your input strings. If it does not, we will refund you the cost of the specific learn event. See Refund Policy.

FREE Trial, for a limited time only: When you register, before you subscribe, you will be given 5 FREE machine learning events, worth $15.00 in total.

Here are two actual email results received:

Example 1: Simple example with 2 input strings and a choice of 2 learned regexes (The Optimal Exact Match and 1 Match):

MLREGEX results 2025-03-07 14:16:16 UTC

Your Learn Event ID:

6c34a2f2-0e25-4a65-bbf6-519bfde9238b

Your Learn Event Name/Description:

Coffee and Tea

Your set of input strings (2)

coffee

tea

Learned Regexes (2)

1. MOST OPTIMAL EXACT MATCH
ABSTRACTION TYPE: NONE
EXPANSION FACTOR: 1.0X
SIGNIFICANT LENGTH: 7

cof{2}e{2}|tea

2. MATCH
ABSTRACTION TYPE: Structural
EXPANSION FACTOR: 4.0X
SIGNIFICANT LENGTH: 6

(cof{2}|t)e{1,2}a?

Example 2: URL example with 13 input strings and a choice of 8 learned regexes (The Optimal Exact Match, 5 Matches and 2 Exact Matches):

MLREGEX results 2025-03-07 14:16:40 UTC

Your Learn Event ID:

0f82734c-9a45-4648-b702-f03c2c468c72

Your Learn Event Name/Description:

URLs

Your set of input strings (13)

http://1.alpha.com

http://2.alpha.com

http://3.alpha.com

http://4.beta.com

http://5.beta.com

http://6.beta.org

http://7.beta.org

https://1.alpha.com

https://2.alpha.com

https://3.alpha.com

https://4.beta.com

https://5.beta.com

https://6.alpha.org

Learned Regexes (8)

1. MOST OPTIMAL EXACT MATCH
ABSTRACTION TYPE: Digit Ranges 1
EXPANSION FACTOR: 1.0X
SIGNIFICANT LENGTH: 43

ht{2}p(s?:/{2}([1-3]\.alph|[4-5]\.bet)a\.com|(s:/{2}6\.alph|:/{2}[6-7]\.bet)a\.org)

2. EXACT MATCH
ABSTRACTION TYPE: NONE
EXPANSION FACTOR: 1.0X
SIGNIFICANT LENGTH: 44

ht{2}p(s?:/{2}((1|2|3)\.alph|(4|5)\.bet)a\.com|(s:/{2}6\.alph|:/{2}(6|7)\.bet)a\.org)

3. MATCH
ABSTRACTION TYPE: Structural
EXPANSION FACTOR: 8.6X
SIGNIFICANT LENGTH: 27

ht{2}ps?:/{2}(1|2|3|4|5|6|7)\.(alph|bet)a\.c?o(m|rg)

4. MATCH
ABSTRACTION TYPE: Structural
EXPANSION FACTOR: 1.2X
SIGNIFICANT LENGTH: 65

(ht{2}ps?:/{2}(1|2|3)\.alpha\.com|ht{2}ps?:/{2}(4\.beta\.com|5\.beta\.com|6\.alpha\.org|(6|7)\.beta\.org))

5. EXACT MATCH
ABSTRACTION TYPE: Structural
EXPANSION FACTOR: 1.0X
SIGNIFICANT LENGTH: 92

((ht{2}ps:/{2}(1|2|3)|ht{2}p:/{2}(1|2|3))\.alpha\.com|(ht{2}ps|ht{2}p):/{2}4\.beta\.com|(ht{2}ps|ht{2}p):/{2}5\.beta\.com|ht{2}p:/{2}(6|7)\.beta\.org|ht{2}ps:/{2}6\.alpha\.org)

6. MATCH
ABSTRACTION TYPE: Digit Class 1
EXPANSION FACTOR: 3.9X
SIGNIFICANT LENGTH: 37

ht{2}p(s?:/{2}(\d\.alph|\d\.bet)a\.com|(s:/{2}6\.alph|:/{2}\d\.bet)a\.org)

7. MATCH
ABSTRACTION TYPE: Word Class 1
EXPANSION FACTOR: 24.3X
SIGNIFICANT LENGTH: 37

ht{2}p(s?:/{2}(\w\.alph|\w\.bet)a\.com|(s:/{2}6\.alph|:/{2}\w\.bet)a\.org)

8. MATCH
ABSTRACTION TYPE: Character Ranges 2
EXPANSION FACTOR: 76923.1X
SIGNIFICANT LENGTH: 17

ht{2}p[.-/1-7:a-ceg-hl-mo-pr-t]{13,15}