Mockoon vs ModHeader: Pricing and Ratings Compared (2026)
Entry prices and free plans as read on each vendor's pricing page, and user ratings as published on review sites, for Mockoon and ModHeader side by side. This page compares data; it is not a hands-on review.
On the data: On the data below, ModHeader leads on lower entry price. We do not name an overall winner for this pair.
Short on time? Here's the quick answer
Based on published vendor pricing and features and on public review data, here's who should pick what:
Mockoon
Create local mock APIs instantly, no internet needed
Best for you if:
- • You want local mock APIs
ModHeader
Modify HTTP request and response headers directly from your browser for web development and debugging.
Best for you if:
- • You want simplifies web development and debugging by allowing quick header modifications
| At a Glance | Mockoon | ModHeader |
|---|---|---|
Starts at | Free plan, paid from $25/mo, billed monthly Pro plan | Free plan, paid from $2/mo, billed monthly ModHeader Pro (Annual billing) plan |
Category | API Tools Developer Tools | API Tools Testing & QA |
Rating | 4.5/5 G2 4.5 · Capterra 4.5 19 reviews | n/a |
Free plan | Yes | Yes |
Watch out for | n/a | Monthly billing is double annual ($4 vs $2). |
Choose Mockoon or ModHeader?
Choose Mockoon if
- You want local mock APIs
- You want easy to use
Choose ModHeader if
- You want simplifies web development and debugging by allowing quick header modifications
- You want helps simulate various user environments and edge cases
- Budget matters ($2/mo, billed monthly vs $25/mo, billed monthly)
In-Depth Analysis
Mockoon
Create local mock APIs instantly, no internet needed
Mockoon's pricing is very generous, offering a fully functional open-source version for free.
Strengths
- Pro: Local mock APIs
- Pro: Easy to use
- Pro: Open source
- Pro: Good features
- Pro: Cross-platform
Weaknesses
- Con: Local only
- Con: Learning curve
- Con: Limited to mocking
- Con: UI could improve
- Con: Alternatives exist
Key features
ModHeader
Modify HTTP request and response headers directly from your browser for web development and debugging.
ModHeader offers a very fair and generous pricing structure, especially for individual developers.
Watch out
Monthly billing is double annual ($4 vs $2).
Strengths
- Pro: Simplifies web development and debugging by allowing quick header modifications.
- Pro: Helps simulate various user environments and edge cases.
- Pro: Reduces debugging time and potential production bugs.
- Pro: Supports testing of feature flags without code changes.
- Pro: Offers additional tools for header testing and security policy editing.
Weaknesses
- Con: Primarily a browser extension, may not cover all advanced network debugging needs.
- Con: Specific pricing details are not immediately available on the provided pages.
Key features
Plans and prices: Mockoon vs ModHeader
| Tool | Plans and prices | Source |
|---|---|---|
| Mockoon |
| mockoon.com/pricing read Oct 23, 2026 |
| ModHeader |
| modheader.com/pricing read Sep 29, 2026 |
Prices as read on each vendor's own pricing page on the date shown. Plans are listed per tool and are not matched against the other tool's plans: a plan name or price in one column says nothing about the same row in the other. Details on Mockoon pricing and ModHeader pricing.
Key Takeaways
Mockoon
- Choose if you want create local mock APIs instantly, no internet needed
ModHeader
- Lower entry price: $2/mo, billed monthly vs $25/mo, billed monthly
What the data shows
On the data below, ModHeader leads on lower entry price. We do not name an overall winner for this pair.
- Only Mockoon has a published user rating (4.5/5 from 19 reviews); ModHeader has none we can show.
- ModHeader has the lower entry price: $2/mo, billed monthly (ModHeader Pro (Annual billing)) against $25/mo, billed monthly (Pro) for Mockoon.
- Both have a free plan.
Criteria: user rating (only above 20 reviews on both sides, gap of 0.2 or more), entry price (only on the same billing basis), free plan. How we rate
Frequently Asked Questions
How do Mockoon and ModHeader compare in 2026?
On the data below, ModHeader leads on lower entry price. We do not name an overall winner for this pair. Only Mockoon has a published user rating (4.5/5 from 19 reviews); ModHeader has none we can show. ModHeader has the lower entry price: $2/mo, billed monthly (ModHeader Pro (Annual billing)) against $25/mo, billed monthly (Pro) for Mockoon. Both have a free plan.
What are Mockoon and ModHeader used for?
Mockoon: Create local mock APIs instantly, no internet needed. ModHeader: Modify HTTP request and response headers directly from your browser for web development and debugging.
What does Mockoon cost vs ModHeader?
Mockoon's cheapest paid plan is Pro at $25/mo, billed monthly; it also has a free plan. ModHeader's cheapest paid plan is ModHeader Pro (Annual billing) at $2/mo, billed monthly; it also has a free plan. Prices read on the vendors' pricing pages, latest check Oct 23, 2026.
What's the main difference between Mockoon and ModHeader?
Mockoon's main strength: local mock APIs. ModHeader's main strength: simplifies web development and debugging by allowing quick header modifications.