Faster web development speed with less bugs


For individual use

Available to everyone!
  • Unlimited basic header modifications
  • URL redirect support
  • Mock, replay, and modify response
  • Up to 3 modifications
Advanced filters
  • Basic filters by URL pattern, tab, and resource type
Team collaborations
  • Up to 3 profiles
  • Basic profile export and import

Purchase 5 Pro licenses

Total: $18.00/mo
7 days free trial
Save 10.00%

Purchase 10 Pro licenses

Total: $33.00/mo
7 days free trial
Save 17.50%

Purchase 25 Pro licenses

Total: $73.00/mo
7 days free trial
Save 27.00%

Purchase 100 Pro licenses

Total: $223.00/mo
7 days free trial
Save 44.25%


Do I need to pay to use ModHeader?
ModHeader is free to use. You can use most of its functionalities without subscribing to the Pro plan. With the Pro plan, you will unlock additional time saving tools and enhanced team collaborations.
Can I cancel my subscription? What is the refund policy?

You can cancel your Pro subscription at any time on our website. If you cancel before the end of the subscription term, your subscription will remain active until the end of your subscription term.

If you are unhappy with the Pro subscription, please send us a message at and we will do our best to address your concern. If you contact us within 30 days of the start of your subscription, we will refund the full amount if we are unable to resolve your problem.

Do I need a separate subscription for ModResponse?

Your account and subscription for ModHeader will automatically work for ModResponse and vice versa. You only need one subscription to get the Pro features for both extensions.

Do you offer discounts?

We offer discount to annual billing. If you pay for the year, it will be cheaper than paying month by month.

We also offer graduated pricing model. The more licenses you purchase, the lower the price will be. Select the number of licenses you want to purchase to see the final price.

Additionally, if you are a student / educator, we will offer you 1 Pro license for free. Simply login to your .edu account and click Subscribe above!

How do I purchase ModHeader Pro for my organization?

You can purchase multiple licenses when you check out. If you have an existing subscription, you can add / remove licenses as needed. You can give licenses to other users from the organization page.

Can I use ModHeader Pro on multiple browser / computer?

Yes! You can use your ModHeader Pro license on as many browser / computer as you would like. In fact, it is very common for our users to use ModHeader on many browser profiles. You can use setup wizard to help you transfer data to a new browser quickly.

Do you support SSO login?

Yes. If you are using the Pro license, we can support SSO login using SAML / OIDC for your organization. Please contact us at to setup SAML.