AI tools

Turn supported office files and PDFs into clean Markdown for editing, indexing, or later AI processing.

Convert short audio or video clips to text with a local Chinese speech model. No audio is sent to a chat provider.

Inspect a document with Apache Tika and return deterministic text, MIME, and metadata fields for later processing.

Read PDF page count, metadata, and structural information.

Extract text from a text-based PDF without sending it to a model.

Merge several PDFs into one ordered document.

Extract a selected page range from a PDF.

Rotate every page by 90, 180, or 270 degrees.

Rewrite a readable PDF into a clean, normalized output file.

Resize an image with a bounded maximum dimension.

Convert common image formats while preserving pixels.

Inspect dimensions, format, color mode, and safe metadata fields.

Reduce image size with bounded quality settings.

Profile CSV columns, missing values, types, and sample rows.

Convert tabular CSV data into structured JSON records.

Flatten a JSON record array into a downloadable CSV.

Validate JSON data against a supplied JSON Schema.

Parse YAML safely and export normalized JSON.

Validate XML and return consistently indented output.

Generate a unified diff between two text versions.

Calculate SHA-256 and related digests for text or files.

Test a regular expression and return structured matches.

Extract text from an image with local Tesseract OCR.

Extract a normalized WAV audio track from a media file.

Convert SRT subtitles to WebVTT with normalized timestamps.

List ZIP entries and detect path traversal or suspicious compression ratios.

Detect common encodings and return normalized UTF-8 text.