App Overview

Edit HTTP Headers for Safari icon

Edit HTTP Headers for Safari

Alfredo Grassau · Developer Tools

Edit HTTP Headers for Safari is a Safari extension that lets you create rules to set or remove HTTP request headers for specific websites.

$2.99 · In-app purchases

PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
5.0
1 ratings · Top 5%

Evidence scope: No current overall US chart position is available. Category-chart positions shown in discovery are a separate scope. Revenue is a directional model estimate, not verified earnings.

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A product spec, screen plans, and build steps for your coding agent.

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What's included16 files

A product spec, phased build plan, differentiation notes, and screen references.

  • START_HERE
  • AGENTS
  • EVIDENCE
  • SPEC
  • BUILD_PLAN
  • DIFFERENTIATION
  • skills/
  • screens/
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Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.

Feature spec

Goal: Send a clear invoice after finishing a job.

  • Add a client, line items, a due date, and payment instructions.
  • Preview the total before exporting a PDF.
  • Keep an editable draft if export fails.

Screen plan

Invoice editor: Client at the top, editable line items in the middle, total and preview action at the bottom.

States: Empty draft, validation errors beside each field, exporting, and a retry action that preserves the draft.

Differentiate and validate

Hypothesis: Contractors need faster repeat invoices more than more templates.

First experiment: Test duplicating a previous job with five contractors. Watch where they hesitate before expanding the feature set.

The full kit adds a phased build plan, evidence notes, tool prompts, and implementation guidance. It is a plan for your coding agent, not a finished app.

Usage: Mechanics are fair game; never reuse the original name, branding, assets, or verbatim copy.

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Free quick prompt For a smaller starting point

Quick prompt

> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for Edit HTTP Headers for Safari: map the core Developer Tools workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
            

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Opportunities

AI-GENERATED OPPORTUNITY HYPOTHESES

These are generated suggestions, not verified review quotations. Check current App Store reviews and speak with users before treating a possible gap as a requirement.

Hypothesis 1

Include advanced features like batch editing and header templates.

Assumption to check: Limited functionality compared to desktop tools

Validate with people who use this workflow before building.

Hypothesis 2

Implement a guided onboarding tutorial to enhance user understanding.

Assumption to check: No clear onboarding process

Validate with people who use this workflow before building.

Hypothesis 3

Provide in-app help and links to community forums.

Assumption to check: Lack of user support and resources

Validate with people who use this workflow before building.

Hypothesis 4

Add bulk actions for easier management of multiple headers.

Assumption to check: Difficult to manage multiple headers

Validate with people who use this workflow before building.

App evidence

Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.

App Store description

Edit HTTP Headers for Safari is a Safari extension that lets you create rules to set or remove HTTP request headers for specific websites. Use it when you need Safari to send a custom header before a page, script, image, iframe, stylesheet, font, media file, or XHR/fetch request loads. Features: · Create Custom Header Rules: Add HTTP header rules for the websites you choose. · Set Request Headers: Replace or add a header value before Safari loads a matching request. · Remove Request Headers: Remove selected headers from matching requests when you do not want them sent. · Per-Website Rules: Create different header rules for different domains. · Resource Type Controls: Choose exactly where a rule applies, including main pages, iframes, scripts, images, stylesheets, fonts, media, and XHR/fetch requests. · iCloud Sync: Keep your header rules synced across iPhone, iPad, and Mac. · Privacy-first design: No data collection, tracking, or logging, your browsing stays completely private. · Multilingual support: Use the extension in multiple languages for a globally friendly experience. · Clean, user-friendly UI: Enjoy a streamlined design that integrates smoothly into your workflow. · Seamless Safari integration: Built to work across Safari on macOS, iOS, and iPadOS. Common Uses: · Test Mobile User Agents: Send an iPhone, iPad, or desktop User-Agent header to test how a website responds. · Set Language Headers: Ask a website to show content in a different language by changing the language header. · Test API Requests: Add custom headers used by development, staging, or internal tools. · Debug Website Behavior: Compare how a site behaves when certain request headers are added, changed, or removed. · Remove Unwanted Headers: Stop selected headers from being sent to specific websites. · Per-Site Development Setup: Keep different header rules for different domains, test servers, or environments.

Written user reviews are not shown here. Check current App Store reviews >

Screenshots

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Build scope

Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.

Define the first version

Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.

Set boundaries

Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.

Check the hard parts

Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.

SUGGESTED BUILD STACK
React Native
Expo
Zustand
Axios
React Navigation
React Native Paper
BUILD KIT DIFFICULTY
Intermediate

From the Build Kit assessment.

A reliable timeline needs an agreed scope and a technical check. Ask your agent to estimate the phases in BUILD_PLAN.md after that review.