Self-hosting is free forever — clone the repo, deploy it yourself, no fees, no limits from us. The hosted cloud (mydevtools.tech) is a paid service.

What is the difference between self-hosting and MyDevTools Cloud?

Self-hosting is the same codebase running on your own infrastructure — you own the data and pay nothing to us. MyDevTools Cloud is our managed service; it is a paid subscription that covers hosting, sync, and backups.

Sensitive data is encrypted in your browser before it reaches the server where supported. The server stores encrypted blobs for vault-style data instead of readable plaintext.

Do I need an account to use the tools?

Google Sign-In is required to save your data across sessions. Many public tool pages can be explored before opening the full app experience.

Is this truly open source?

Yes. Full source code is available on GitHub under the GPL-3.0 license. You can audit, contribute, fork, or self-host it.

Does it work offline?

Many tools are fully client-side and can work without server processing. Tools that connect to external services, sync data, or send API requests need a network connection.

Does String Inspector store or upload my data?

String Inspector is designed for browser-based use. Many MyDevTools utilities process data locally; tools that require sync or external connections may send only the data needed for that workflow.

Do I need to install anything to use String Inspector?

No installation required. String Inspector runs directly in your web browser — just open the link and start using it.

Converters

Free String Inspector OnlineString Inspector on MyDevTools

Inspect any string: character, word, line, sentence, and byte (UTF-8) counts plus a table of invisible and non-ASCII characters with Unicode code points. Answers "count characters online" or "find invisible characters".

Use String Inspector Browse All Tools

About String Inspector

Count characters, words, lines, and bytes, and reveal invisible or non-ASCII characters with their Unicode code points. Runs entirely in your browser — no installation, no account required to try it.

Common String Inspector use cases

Use String Inspector when you need a fast, browser-based way to work with character counter. It is useful during API debugging, code reviews, documentation cleanup, test data preparation, and quick checks on a new machine where you do not want to install a desktop app. Because MyDevTools keeps related utilities together, you can move from String Inspector into nearby tools like formatters, converters, generators, encoders, decoders, and API helpers without leaving the same toolkit.

Example workflow

A typical workflow starts by pasting or typing your input into String Inspector. Review the result, copy the cleaned or generated output, then continue with a related task such as validating a payload, decoding a token, parsing a URL, generating an identifier, or testing an API request. This makes String Inspector part of a practical developer workflow instead of a one-off utility page.

Key Features

String Inspector supports character counter workflows for quick browser-based developer tasks.
String Inspector supports word count workflows for quick browser-based developer tasks.
String Inspector supports byte counter workflows for quick browser-based developer tasks.
String Inspector supports string length workflows for quick browser-based developer tasks.
String Inspector supports unicode inspector workflows for quick browser-based developer tasks.
String Inspector supports invisible characters workflows for quick browser-based developer tasks.
String Inspector supports utf-8 bytes workflows for quick browser-based developer tasks.
Runs in your browser — no install
Free to use, always

String Inspector FAQ

Is String Inspector free to use?

Yes. String Inspector is available through MyDevTools with a public landing page and browser-based app experience.

Do I need to install anything for String Inspector?

No. String Inspector runs in a web browser, so you can open it from any modern device without installing a desktop utility.

What is String Inspector best for?

What should I use with String Inspector?

Most developers pair String Inspector with related MyDevTools utilities such as formatters, parsers, encoders, generators, API tools, and security helpers.

How to Use String Inspector

01
Open the tool
Click "Use String Inspector Free" above — no download or account required.
02
Enter your data
Paste or type your input directly in the browser. Processing happens locally on your device.
03
Copy the result
Get your output instantly. Copy it, download it, or keep working in the same tab.

Open String Inspector

Related Converters Tools

URL Encoder / DecoderPercent-encode or decode text for query strings and URI components with UTF-8 support.URL ParserParse any URL into protocol, host, path, query parameters, and hash. Runs locally in your browser.Timestamp ConverterConvert Unix seconds or milliseconds, ISO-8601, and date strings. See UTC, local, and relative time with one-click copy.Base64 Encoder / DecoderEncode text to Base64 or decode Base64 strings instantly, with UTF-8 support. Runs entirely in your browser.Number Base ConverterConvert integers between number bases 2 through 36 with optional 0x/0b/0o prefixes. Runs entirely in your browser.Image to Base64 ConverterConvert images to Data URI or raw Base64 strings instantly. Drops local images and encodes them purely in the browser.CSV / Excel ↔ JSON ConverterUpload CSV or Excel files and convert to JSON, or export a JSON array of objects back to CSV and XLSX. Dates from Excel become ISO strings. Runs in your browser.Unit ConverterConvert between 323 units across 43 scientific and engineering categories including length, mass, pressure, viscosity, thermal, electrical, polymer, and materials science units.

View all Converters tools