About | Songtov Utility

Who Is Behind This Site

Songtov Utility is built and maintained by Chiho Song, a software developer based in South Korea. Chiho worked as a backend developer and now builds AI agents, with a practical focus on APIs, automation, data handling, and developer workflows. You can reach him at songchiho777@gmail.com or through the Contact page.

Every article and tool page on this site is reviewed and maintained by Chiho with a focus on practical accuracy, clear examples, and real debugging usefulness. The goal is information that reflects development experience rather than generic filler.

Mission

Songtov Utility is a practical collection of browser-based debugging tools for working developers. The site focuses on small tasks that interrupt real work: formatting a JSON payload before sharing it, decoding a Base64 string from a log, checking whether a URL parameter was encoded twice, converting a Unix timestamp from a webhook, or preparing Markdown before it reaches a README or pull request.

Every tool on this site is designed with a single principle: get out of your way. No sign-up required, no account dashboard, no uploads for simple text transformations. Just open the tool, complete the task, and leave with a little more context than you arrived with.

What We Build

Songtov Utility is a growing collection of lightweight utilities organized around real debugging workflows:

JSON Formatter — Format, validate, and inspect API responses, webhook payloads, and config snippets with clear parse errors.
Word Count — Check words, characters, sentences, and paragraphs while editing docs, release notes, prompts, and UI copy.
Base64 Encoder/Decoder — Decode JWT sections, Basic Auth values, Kubernetes secrets, and Base64URL strings without sending data to a server.
URL Encoder/Decoder — Encode query values, decode broken callback URLs, and inspect percent-encoded parameters from logs and redirects.
Unix Timestamp Converter — Convert epoch seconds or milliseconds from logs, JWT claims, cache headers, and webhook events into readable time.
UUID Generator — Generate UUID v4 values for test fixtures, seed data, correlation IDs, local records, and debugging examples.
Case Converter — Convert API fields, database columns, filenames, headings, and labels between common naming conventions.
Markdown Preview — Preview READMEs, pull request notes, docs pages, and release notes before broken Markdown reaches production.

We are always adding new tools. Useful suggestions usually start with a concrete problem: a payload that is hard to inspect, a log value that is hard to decode, a timestamp that is hard to interpret, or a documentation format that keeps breaking.

Editorial Standards

Each tool page is paired with explanatory material: worked examples, common mistakes, limitations, and related reading. The goal is to help visitors understand the concept behind the tool, especially when they are debugging an unfamiliar API response, encoded value, timestamp, identifier, or document format.

When a page covers a technical topic, we state assumptions, limitations, and common failure modes directly. Utilities are paired with educational material so visitors can understand what the tool is doing instead of treating it as a black box.

Privacy by Design

All tool computation happens in your browser using client-side JavaScript. When you paste a JSON payload, URL, token fragment, timestamp, or draft document into a tool, that data never leaves your machine. We built it this way intentionally — debugging data often comes from private systems, and private data should stay local whenever possible.

Advertising and Transparency

This site may display advertisements through Google AdSense to cover hosting, domain, and maintenance costs. We aim to keep the ad experience unobtrusive and separate from primary tool controls. Ads should never be disguised as buttons, output panels, or required steps.

Get in Touch

Have a tool suggestion, found a bug, or just want to say hello? Visit our Contact page.