Developer Tools

Free browser developer utilities for encoding, JWT inspection and JSON/XML/YAML conversion — keeping tokens on your machine.

Conversions

ASCII Converter

ASCII and text conversion

Base64

Encode and decode Base64

URL Encode/Decode

URL encoding utilities

Data File Converter

Convert JSON, YAML, XML, CSV, TSV & more files

Data Schema Text Converter

Convert JSON, YAML, XML, CSV, TSV & code snippets online

HTML Entities

Encode and decode HTML

Hex Text

Hexadecimal conversion

Binary Text

Binary conversion

JWT Decoder

Decode JSON Web Tokens

Code Beautifier

Format code and JSON

About Developer Tools

Developer tools cover everyday encoding chores: Base64/URL/HTML/Hex/Binary transforms, JWT parsing, and JSON beautify/minify plus XML/YAML bridges. Everything is local so secrets pasted for debugging are not shipped to a remote playground.

Best for

  • Debugging JWTs without online parsers
  • Base64 encoding API payloads quickly
  • Beautifying or minifying JSON config
  • Converting between JSON, XML and YAML

Pros

  • +Local handling of secrets and tokens
  • +Wide set of encode/decode utilities
  • +Instant JSON format cleanup
  • +No install or account friction

Cons

  • −Not a full IDE or API client
  • −Remote JWKS verification is out of scope
  • −Huge payloads still bound by browser memory

How to use Developer Tools tools

  1. 1

    Pick the Developer Tools tool you need from the list below — every tool runs locally in your browser.

  2. 2

    Upload your file(s) from your PC, Mac or mobile device, or simply drag and drop them onto the page. You can add more files to process them together.

  3. 3

    Use the gear icon to specify codec, quality, aspect ratio or other settings and apply them to all files if you want.

  4. 4

    Click Convert to start the process. When the conversion finishes, download the result or save it back to Google Drive / Dropbox.

Frequently Asked Questions

Are developer tools free?
Yes. Encoding, JWT and data converters are free.
Is it safe to paste tokens?
Processing is local. Still avoid sharing production secrets in screenshots.
Can I decode JWT payloads?
Yes. Inspect header and payload claims locally.
Can I beautify JSON?
Yes. Format or minify JSON for readability.
Do you convert JSON to YAML?
Yes where JSON/XML/YAML tools are enabled.
Is Base64 encryption?
No. Base64 is encoding, not encryption.
Do tools work offline?
After load, most transforms run fully offline.
Can I encode files to Base64?
Yes for supported tools that accept file input.
FREE

100% Free

No hidden fees, no subscriptions, and no limits. Enjoy complete access to all features gratis.

SIGNUP

No Signup Required

Start converting immediately without creating an account or sharing email address.

PRIVACY

Private & Secure

Your files never leave your device. All processing is completed locally for maximum privacy.

BATCH

Batch Conversion

Convert multiple files simultaneously to save time. Fast and efficient multi-file queue.

LOCAL

Runs in Browser

Utilizes advanced client-side WebAssembly technology to process files directly inside your tab.

FORMATS

200+ Formats

Supports a wide variety of formats including images, documents, audio, video, and more.

USER REVIEWS

Developer Tools Quality Rating

4.8
25 reviews

How was your experience? You need to convert and download at least one file to provide feedback!