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ModHeader vs Kreya: Which is Better in 2026?

Choosing between ModHeader and Kreya comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.

Bottom line: ModHeader is our overall pick for browser devtools workflows. Pick Kreya if you need API tools.

··Methodology
Editor reviewed0 verified reviews comparedPricing checked Jun 2026

Short on time? Here's the quick answer

We've tested both tools. Here's who should pick what:

ModHeader

Modify HTTP request and response headers directly from your browser for web development and debugging.

Best for you if:

  • • You need browser devtools features specifically
  • Browser extension to modify HTTP request and response headers.
  • Speeds up web development and debugging by simulating various header scenarios.

Kreya

Debug gRPC, REST, SSE, and WebSocket APIs from a single, privacy-first workspace.

Best for you if:

  • • You need API tools features specifically
  • Unified client for gRPC, REST, SSE, and WebSocket APIs.
  • Supports advanced features like scripting, snapshot testing, and Git-native collaboration.
At a Glance
ModHeaderModHeader
KreyaKreya
Starts at
FreeFree tier available
FreeFree tier available
Best For
Browser DevToolsAPI Tools
Rating
--

Choose ModHeader or Kreya?

ModHeader

Choose ModHeader if

Modify HTTP request and response headers directly from your browser for web development and debugging.

  • Simplifies web development and debugging by allowing quick header modifications.
  • Helps simulate various user environments and edge cases.
  • Reduces debugging time and potential production bugs.
  • Your work is browser devtools-shaped, not API tools-shaped
Kreya

Choose Kreya if

Debug gRPC, REST, SSE, and WebSocket APIs from a single, privacy-first workspace.

  • Supports a wide range of API types and protocols in one tool
  • Privacy-first architecture keeps all data on the user's device
  • Powerful automation and testing capabilities with scripting and snapshot tests
  • Your work is API tools-shaped, not browser devtools-shaped
FeatureModHeaderKreya
Pricing ModelFreemiumFreemium
User RatingNo ratings yetNo ratings yet
Categories
Browser DevToolsAPI Tools
API ToolsDebugging

In-Depth Analysis

ModHeaderModHeader

Modify HTTP request and response headers directly from your browser for web development and debugging.

Strengths

  • +Simplifies web development and debugging by allowing quick header modifications.
  • +Helps simulate various user environments and edge cases.
  • +Reduces debugging time and potential production bugs.
  • +Supports testing of feature flags without code changes.
  • +Offers additional tools for header testing and security policy editing.

Weaknesses

  • -Primarily a browser extension, may not cover all advanced network debugging needs.
  • -Specific pricing details are not immediately available on the provided pages.

Key features

Modify HTTP request headersModify HTTP response headersModify authorization headersModify set-cookie headersToggle feature flags via headers or cookiesFilter header modifications by tab
Starts at Free

KreyaKreya

Debug gRPC, REST, SSE, and WebSocket APIs from a single, privacy-first workspace.

Strengths

  • +Supports a wide range of API types and protocols in one tool
  • +Privacy-first architecture keeps all data on the user's device
  • +Powerful automation and testing capabilities with scripting and snapshot tests
  • +Facilitates team collaboration with Git-native project management
  • +Easy migration from other popular API clients

Weaknesses

  • -Advanced scripting and testing features are only available in paid plans
  • -Priority support is limited to paid plans
  • -Offline license option is only available for Enterprise users

Key features

Debug gRPC, REST, Server-Sent Events, and WebSocket APIsSync API definitions from OpenAPI and ProtobufsInspect streaming, unary, and multi-channel traffic with HTTP/1.1, HTTP/2, HTTP/3 supportConnect over HTTP, local Unix domain sockets, or Windows named pipesBaseline responses and diff snapshots automatically to detect regressionsAutomate repetitive flows with JavaScript, variables, and hooks
Starts at Free

Pricing: ModHeader vs Kreya

PlanModHeaderKreya
Tier 1
Free
Free
Free
Free
Tier 2
$4.00/month
ModHeader Pro
Contact us
Pro
Tier 3
$2.00/month
ModHeader Pro (Annual billing)
Contact us
Enterprise
Tier 4
$60.00
ModHeader Pro (One time payment)
N/A

Pricing verified from each vendor's public pricing page. Compare in detail on ModHeader pricing and Kreya pricing.

Who Should Use What?

On a budget?

Both are freemium. Compare plans on their websites.

Go with: ModHeader

Want the highest-rated option?

Neither has ratings yet.

Too early to call on ratings — compare on features and pricing.

Value user reviews?

Neither has ratings yet.

Too early to call — neither has ratings yet.

3 Questions to Help You Decide

1

What's your budget?

Both are freemium. Pricing won't help you decide here.

2

What's your use case?

ModHeader is a browser devtools tool. Kreya is in API tools. Pick the category that matches your needs.

3

How important are ratings?

Neither has ratings yet.

Key Takeaways

ModHeader

  • Free tier available
  • Our pick for this comparison

Kreya

  • Better fit for API tools

The Bottom Line

ModHeader is our pick.

Frequently Asked Questions

Is ModHeader or Kreya better?

ModHeader is rated in our evaluation. Both are freemium.

What are ModHeader and Kreya used for?

ModHeader: Modify HTTP request and response headers directly from your browser for web development and debugging.. Kreya: Debug gRPC, REST, SSE, and WebSocket APIs from a single, privacy-first workspace..

What does ModHeader cost vs Kreya?

ModHeader is freemium (free tier + paid plans). Kreya is freemium (free tier + paid plans). Visit their websites for detailed pricing.

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