UTF Validator

The UTF Validator analyzes input text or bytes to determine if the sequence conforms to a chosen Unicode encoding (UTF-8, UTF-16, or UTF-32). It reports exact error positions for any invalid byte patterns, aiding developers in diagnosing data quality issues. Conceptually, the tool decodes byte streams according to encoding rules, flags anomalies such as overlong encodings or lone surrogates, and can propose remediation strategies like re-encoding or replacement. It is valuable in content ingestion pipelines, localization workflows, and systems requiring strict text integrity. The tool excels when data originates from external sources, logs, or user submissions, where encoding mismatches commonly cause processing failures. Its unique value lies in precise position reporting, optional automatic detection, and support for streaming validation on large inputs, reducing downstream data clean-up time. Use cases include validating API payloads, preparing localization files, and ensuring log text remains well-formed for indexing and search. Core features include: encoding selection, strict mode, BOM handling, error listing with byte offsets, and optional normalization or re-encoding previews for safe data repair.