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GenericTools.dev

Free Online Developer & Converter Tools

JSON formatter, IP lookup, Base64, PDF tools, image converters and useful developer utilities.

Toolbox

Developer tools in one place

Simple utilities built to get the job done quickly.

Free tools built for everyday developer work

GenericTools.dev is a small collection of practical utilities for developers, support teams, system administrators and technical users. The goal is simple: open a focused page, finish a conversion or lookup quickly, and leave with a clear result. There is no account system, no dashboard and no paywall around the tools.

The current toolbox covers common tasks such as formatting JSON, checking public IP details, testing TCP ports, decoding JWT payloads, converting timestamps, generating GUID values, encoding URL and Base64 text, editing HTML, viewing e-Defter XML files and converting DICOM images to PNG. New tools are added only when they can be explained clearly and kept useful on their own page.

Many tools run entirely in the browser. Server-side tools are used only when the task requires network access or specialized processing, such as port checks, IP geolocation or DICOM image rendering.

How GenericTools.dev handles privacy

Developer tools often handle API responses, encoded values, tokens, network addresses or files. For that reason, each tool page explains whether the operation runs locally in your browser or requires a server request. JSON, Base64, URL, JWT, GUID and timestamp tools are designed to work client-side. The HTML Editor also runs locally and isolates previews inside a sandboxed iframe. File and network tools are handled with narrower server logic and user-facing notes.

You should still avoid pasting production secrets, passwords, private keys or regulated data into any online service. GenericTools.dev is meant for routine utility work, troubleshooting and learning, not for storing sensitive records.

Helpful guides

These short guides explain the concepts behind the tools and help users choose the right format or workflow before using a converter.

Popular workflows

GenericTools.dev groups small technical tasks into focused pages so each tool can be used without opening a full development environment. These are common workflows the site is designed to support:

  • Format a JSON API response, validate syntax and copy a readable version for debugging.
  • Check public IP location, ISP and timezone details before reviewing network traffic.
  • Test whether a public TCP port is reachable after a firewall, router or hosting change.
  • Decode JWT payloads and inspect expiration claims while troubleshooting authentication.
  • Convert Unix timestamps between seconds, milliseconds, UTC and local time.
  • Generate GUID or UUID values for tests, imports, database records and distributed systems.
  • Encode or decode Base64 and URL values without sending local browser-side data to a server.

The site is intentionally lightweight: no accounts, no unnecessary steps and no heavy theme that gets in the way of the result.

Why these tools are documented

A converter is more useful when the page explains the format, the edge cases and the limits of the result. Each active tool includes notes about privacy, common mistakes and when a result should be treated as an estimate rather than proof.

This matters for technical work: IP geolocation is approximate, Base64 is not encryption, JWT decoding is not signature validation, and timestamp display depends on time zone. GenericTools.dev keeps those details close to the tool so the result is easier to interpret.