Online Developer Tools for Code, SEO & Tracking
When working on a website or software project, small tasks come up repeatedly that do not require opening a full application: formatting messy JSON, converting Markdown to HTML, checking a URL response, preparing a robots.txt file or Sitemap, or creating a UTM link for a new campaign. We brought these tasks together in one place so you can quickly find the right tool and complete the task directly from your browser.
Available Developer Tools
Each tool is designed for a specific task. Open the tool that fits your needs, then return to this page whenever you need another step in the same workflow.
Online JSON Formatter
JSON FormatterFormat nested JSON data into a structure that is easier to read and review, and identify syntax issues when working with API responses, configuration files, or data copied from another project.
Open JSON FormatterConvert Markdown to HTML
Markdown to HTMLConvert Markdown text into clean HTML when moving documentation or written content into a web page or content management system.
Open Markdown ConverterBase64 Encoder & Decoder
Base64 Encoder / DecoderEncode text and data to Base64 or decode it when testing API integrations or working with data transferred as text. Base64 is a data encoding method, not encryption or a security mechanism.
Open Base64 Toolrobots.txt Generator
Robots GeneratorCreate crawling directives such as User-agent, Allow, and Disallow, and add a Sitemap URL in an organized format. Use robots.txt to manage crawling, not as a way to protect sensitive files or guarantee that pages will not be indexed.
Open robots.txt GeneratorXML Sitemap Generator
Sitemap GeneratorCreate an organized XML sitemap for the URLs you want search engines to discover, while understanding elements such as loc and lastmod and when a Sitemap Index may be needed.
Open Sitemap GeneratorLink & HTTP Status Checker
Link CheckerCheck a URL response to see whether it returns 200, redirects through 301, reaches a 404, or encounters a 5xx server error. Useful when maintaining links, moving pages, or changing URL structures.
Open Link CheckerUTM Link Generator
UTM GeneratorCreate links tagged with utm_source, utm_medium, and utm_campaign to organize campaign tracking and understand traffic sources in your analytics platform.
Open UTM GeneratorWhy Are These Tools in One Place?
The tools serve different purposes, but they support three recurring areas of website development and management: working with code and data, reviewing technical website elements, and measuring traffic and campaigns.
Code & Data
JSON Formatter, Markdown to HTML, and Base64 help with everyday tasks that arise while developing interfaces, reviewing data, writing documentation, or testing data exchange between systems.
Technical SEO & Crawling
robots.txt, XML Sitemap, and HTTP checking provide direct tools for understanding how crawlers access your website and for reviewing links and technical status issues that may need attention.
Marketing & Measurement
The UTM Generator connects technical implementation with marketing by helping you label campaign sources consistently so performance is easier to understand in analytics tools.
Which Tool Should You Use for Each Task?
Once you know the problem you need to solve, choosing the right tool becomes straightforward. The table below matches common tasks with the most suitable tool.
| Task | Recommended Tool | What You Get |
|---|---|---|
| Read nested JSON or review its structure | JSON Formatter | A clean structure that is easier to read and review. |
| Convert Markdown text into web-page markup | Markdown to HTML | HTML generated from Markdown syntax. |
| Encode text or decode Base64 data | Base64 Tool | Base64-encoded data or decoded text. |
| Organize crawler directives | مولد robots.txt | User-agent, Allow, Disallow, and Sitemap directives. |
| Prepare a URL list for search engines | XML Sitemap Generator | An organized XML file containing website URLs. |
| Check why a URL is failing or where it redirects | HTTP Checker | The HTTP response status needed to diagnose the URL. |
| Identify the source of a campaign or post | مولد UTM | A URL containing organized campaign tracking parameters. |
Use Each Tool as Part of a Review Process, Not as an Isolated Step
You get better results when you know what you want to verify before using a tool, then review its output in the context of your project rather than relying on the result alone.
Define the Task
Is the issue related to data formatting, a URL, crawling, a sitemap, or campaign tracking?
Use the Right Tool
Enter only the required data and review your input before generating the result.
Understand the Output
An HTTP status code, robots directive, or UTM parameter has a specific meaning that should be interpreted in relation to your actual goal.
Test After Implementation
After changing the website or URL, run the check again to confirm the final result works as intended.
Understanding the Result Matters More Than Simply Generating It
Some tools can generate a file or URL in seconds, but using the result correctly depends on understanding its purpose and limitations. That is why each tool page includes practical guidance alongside the tool itself.
In Technical SEO: Crawling Is Not the Same as Indexing
robots.txt manages crawler access to paths, while a Sitemap helps search engines discover URLs. Neither means that a page will automatically be indexed or receive a particular ranking. Review the page itself, indexing signals, and internal links when diagnosing an issue.
For Links: The Status Code Is Not the Whole Story
A 200 status means the request succeeded technically, but it does not prove that the URL reached the content you intended. Likewise, a 301 may be a valid redirect after moving a page. Check the final destination and context before deciding whether a fix is needed.
With Base64: Encoding Is Not Encryption
Base64 is a way to represent data as text and can be decoded easily. Do not use it to protect passwords or confidential information; handle sensitive data using security measures appropriate for your project.
With UTM: Consistent Naming Improves Reporting
UTM links are most useful when you use consistent, clear values for source, medium, and campaign. Inconsistent naming fragments reports even when the URL itself is technically correct.
Why Is the Developer Tools Section Designed This Way?
The goal is not to collect as many tools as possible on one page, but to provide focused tools with clear purposes and guidance that helps you make the right decision after seeing the result.
One Task per Tool
Each page focuses on one specific function instead of combining unrelated operations in a single interface, making it easier to reach the result you need.
Guidance Alongside the Tool
Understanding what 404, Disallow, or utm_medium means is more important than simply clicking a button, so the tools include guidance to help you use the result correctly.
Connected Workflows
Technical tasks are often connected. You might create a Sitemap and then review robots.txt, or change a URL and then check its HTTP status. Keeping the tools in one hub makes it easier to move between related tasks.
Frequently Asked Questions About Developer Tools
Which developer tools are available on AdawatiPlus?
Do I need to install software to use these tools?
What is the difference between the JSON Formatter and Base64 Tool?
Does robots.txt prevent a page from appearing in search results?
Does creating an XML Sitemap guarantee indexing?
When should I use the Link Checker?
Do UTM links affect a page's Google ranking?
Can I use more than one tool in the same workflow?
Working on an API Integration?
You can also explore the AdawatiPlus API Portal to learn about the services and APIs available to developers.