About CodersTool
Practical developer tools for everyday technical work
CodersTool is a collection of browser-based developer tools, converters, validators, calculators, and debugging utilities built to make common technical tasks faster.
Developers regularly need to format a JSON response, decode a Base64 value, check a hash, inspect an HTTP response, clean a list of URLs, validate SQL, look up DNS records, calculate a subnet, convert text between formats, or quickly verify something without opening another application.
Those jobs are usually too small to justify writing a script or installing another package, but they happen often enough to interrupt your workflow.
CodersTool exists to make those small jobs easier.
Why we built CodersTool
Software development involves a surprising amount of repetitive work around the actual code.
You copy data from an API and need to format it. You receive an encoded value and need to inspect it. You are troubleshooting a redirect and want to see the response headers. You need test data for a database query or want to verify how a regular expression behaves.
None of these tasks is particularly complicated, but switching between documentation, command-line utilities, IDE extensions, search results, and one-off websites adds friction.
CodersTool brings many of those focused utilities together in one place.
The goal is not to replace your IDE, terminal, database client, browser developer tools, or other professional development software. CodersTool is intended for the smaller jobs around them: quick transformations, checks, calculations, lookups, experiments, and reference tasks.
What you can do with CodersTool
The site includes tools across several areas of everyday development and technical work.
Data, encoding and text
Work with JSON, XML, YAML, Base64, Unicode, URLs, text lists and other common formats.
Examples include formatters, converters, encoders, decoders and text-cleanup utilities.
Security and hashing
Generate or inspect hashes and work with common development-oriented cryptographic formats.
These tools are intended for development, testing and working with data you are authorized to use—not as a replacement for your application's security architecture.
SQL and databases
Format SQL, check queries, generate test data and work through common database-development tasks.
Networking and HTTP
Inspect DNS records, HTTP responses, redirects, SSL information, IP addresses and subnet calculations.
Browser, device and design testing
Check browser characteristics, display behaviour, dimensions and other values useful during development and QA.
Built for working developers — and people learning the tools
CodersTool is designed primarily for developers, testers, system administrators, technical marketers, designers and other people who regularly work with code or structured data.
Experienced developers can use it as a quick workbench for routine tasks.
People learning development can also use the tools to understand formats and transformations by experimenting with real examples and seeing the results immediately.
We try to keep individual tools focused. A JSON formatter should help you format JSON. A subnet calculator should calculate subnets. A redirect checker should make redirects easier to inspect.
A small tool does not need dozens of unrelated features to be useful.
How we approach accuracy
A developer utility is useful only if you can understand and verify its output.
When we build or update CodersTool tools, we aim to:
- follow established specifications and common implementation behaviour where applicable;
- make inputs, outputs and assumptions understandable;
- handle common invalid or unusual input sensibly;
- provide examples or documentation where additional explanation is useful;
- keep utilities focused on the task they claim to perform; and
- correct problems when they are reported or discovered.
Some technical questions do not have a single universal answer. Browser behaviour, implementation details, standards, libraries and external services can change.
For important production decisions, security-sensitive work, financial decisions or destructive operations, you should always verify the result against the relevant official documentation and your target environment.
If you believe a CodersTool utility is producing an incorrect result, please report the problem. Reproducible examples are especially useful.
Privacy and your data
Developer tools sometimes require users to paste source code, identifiers, URLs, structured data or other information into an input field.
That makes data handling important.
Different CodersTool utilities have different technical requirements. Some operations can be performed locally, while tools that depend on network lookups or server-side processing may need to send the submitted information to a server in order to perform the requested operation.
Do not submit passwords, private keys, production secrets, confidential customer information or other sensitive information to an online tool unless you understand exactly how that particular tool processes the data.
Our Privacy Policy explains our site's data, analytics, advertising and storage practices in more detail.
We also aim to make tool-specific behaviour clear where the distinction matters.
CodersTool Quick Launcher
For developers who use the utilities frequently, the CodersTool Quick Launcher is also available through the Chrome Web Store.
It provides quick access to commonly used CodersTool utilities directly from the browser toolbar, including formatting, encoding, hashing, SQL and network-related tools.
Get the CodersTool Chrome Extension
Who operates CodersTool?
CodersTool is an independently developed product operated by Devicode Software, a Toronto-based software company building focused applications for specific technical and operational problems.
CodersTool is Devicode's developer-tools product.
Rather than trying to turn CodersTool into a full development environment, we keep its purpose narrower: provide practical utilities that remove friction from the small technical tasks developers encounter every day.
You can learn more about the company and its other software at Devicode.com.
Help us improve CodersTool
CodersTool continues to evolve based on real development workflows.
If you find a bug, notice an incorrect result, have an idea for improving an existing tool, or regularly perform a small technical task that you think belongs in CodersTool, we want to hear about it.
You can also browse the complete tool directory to see what is currently available.
CodersTool
Practical browser-based tools for developers, testers and anyone working with code or data.
Operated by Devicode Software in Toronto, Canada.