Discover Free Online Tools for Hex Editing, Text‑to‑Image, Code Snippets, and Diagramming

hexed.it – Online Hex Editor

hexed.it is a browser‑based hexadecimal editor that requires no installation or registration. It loads quickly at https://hexed.it and presents a three‑pane layout: a file data inspector on the left, the file content in the center, and file attributes on the right.

The top toolbar includes handy utilities such as file‑format identification, hash calculation, hash lookup, and histogram analysis.

File Format Identification

When a file lacks an extension, the built‑in format recognizer consults a database of over ten thousand signatures to determine its type, as demonstrated with a stripped‑extension PPT file.

Hash Calculation

The tool can compute common hash values (MD5, SHA‑1, etc.) for the loaded file, a routine operation for security analysis.

Hash Lookup

Integrated links to platforms such as Google, VirusTotal, and Hybrid allow quick verification of hash values against known malware databases.

Histogram

The histogram feature tallies the frequency of each byte (0x00‑0xFF) in the file, useful for deep binary analysis.

A practical tip: appending a single byte (e.g., 0x00) to a file before re‑uploading can alter its hash, potentially bypassing simple hash‑based filters.

text2image – Convert Text to Pictures

text2image ( https://text2image.jaychen.fun/) transforms arbitrary text into an image, supporting custom themes, colors, margins, and optional watermarks.

This is handy for generating shareable code snippets without taking screenshots, especially when the snippet exceeds one screen.

Carbon – Stylish Code‑to‑Image Generator

Carbon ( https://Carbon.now.sh) focuses on converting source code into high‑quality images with extensive syntax highlighting for virtually all programming languages.

Beyond image export, Carbon can copy the result directly as an image or as a URL that embeds the code, enabling quick sharing without saving files.

draw.io – Online Diagramming Tool

draw.io is a web‑based diagram editor that requires no registration. It offers a library of shapes, themes, and color palettes, allowing even beginners to create professional flowcharts, architecture diagrams, and other visuals instantly.

The tool is especially useful for preparing presentation graphics or documentation diagrams without the overhead of traditional desktop applications.