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Convrtr

Convrtr is a simple JavaScript based tool to quickly convert text between different formats and to help create or solve data driven puzzles and ciphers.

Convrtr began as a set of fast, dependable PHP scripts supporting the Halo ARG community through rapid-fire decoding challenges. Inspired by the loss of tools like Everlost and Xlate, it evolved into a portable microsite and later a lightweight JavaScript app, designed for solvers needing reliable, offline-friendly converters anywhere. Today, Convrtr remains a nimble, always-ready toolkit for anyone tackling encoded text, carrying forward the spirit of the puzzle-solving community.

Text tools

A collection of practical utilities for editing, converting, analyzing text and exploring text patterns for a variety of tasks and puzzles.

Cipher tools

A variety of classic and modern cipher utilities for encrypting, decrypting, and experimenting with secret codes and algorithms.

Hexadecimal tools

Work with hexadecimal data using tools for conversion, analysis, and manipulation.

File tools

Access utilities for inspecting, converting, and extracting information from different file types and formats.

ONI tools

Specialized decoders and utilities inspired by ARGs, offering advanced features for data analysis and cryptography.

Miscellaneous tools

A diverse set of unique tools designed to help with puzzle solving, creative challenges, and tasks that don’t fit elsewhere.

Convrtr home page screenshot