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231 working tools

Local File Tools

Inspect, verify and transform selected files directly in your browser without uploading their contents or using downloader workers.

Create a ZIP Archive Locally

Package up to 50 selected files into one compressed ZIP archive entirely in your browser without uploading the selected file.

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Batch Image Resizer to ZIP

Resize multiple images to one bounded set of dimensions and collect the results in a ZIP entirely in your browser without uploading the selected file.

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Batch Image Compressor to ZIP

Re-encode multiple images as adjustable-quality WebP files and download one ZIP entirely in your browser without uploading the selected file.

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Batch Image Format Converter to ZIP

Convert multiple browser-readable images to PNG, JPEG or WebP and collect them in one ZIP entirely in your browser without uploading the selected file.

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ZIP Archive Content Viewer

Inspect file paths and declared compressed sizes inside a ZIP without extracting them entirely in your browser without uploading the selected file.

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Extract One File from ZIP Locally

Select and download one safely named file from a bounded ZIP archive entirely in your browser without uploading the selected file.

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ZIP Archive Integrity Checker

Verify every bounded ZIP entry against its stored CRC32 checksum in the browser entirely in your browser without uploading the selected file.

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Secure SVG to PNG Converter

Sanitize and rasterize one SVG illustration into a transparent PNG image entirely in your browser without uploading the selected file.

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Secure SVG to JPG Converter

Sanitize and rasterize one SVG graphic onto a white JPEG background entirely in your browser without uploading the selected file.

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Secure SVG to PDF Converter

Sanitize and place one SVG graphic on a fitted single-page PDF document entirely in your browser without uploading the selected file.

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Local Subtitle Cue Text Editor

replace an exact phrase in cue text and export a normalized SRT without altering cue timings entirely in your browser without uploading the selected file.

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Merge Subtitle Files by Cue Time

combine up to 20 SRT or WebVTT files into one chronologically ordered SRT entirely in your browser without uploading the selected file.

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Split Subtitles at an Exact Timestamp

divide one SRT or WebVTT timeline into two normalized SRT files inside a ZIP archive entirely in your browser without uploading the selected file.

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Private Subtitle Timeline Preview

inspect cue count, duration, overlaps and a bounded cue-text preview without rendering media entirely in your browser without uploading the selected file.

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Private DOCX Text Viewer

Read paragraph text from a DOCX document without executing macros, links or embedded content entirely in your browser without uploading the selected file.

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Safe DOCX to HTML Converter

Convert DOCX paragraph text into a standalone escaped HTML document entirely in your browser without uploading the selected file.

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Local Text to DOCX Converter

Package plain UTF-8 text as a standards-based DOCX document entirely in your browser without uploading the selected file.

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Safe HTML to DOCX Converter

Extract inert visible text from a local HTML file and package it as DOCX paragraphs entirely in your browser without uploading the selected file.

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Private EPUB Text Reader

Read a bounded text preview from the declared EPUB spine without running ebook scripts entirely in your browser without uploading the selected file.

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Local EPUB Metadata Viewer

Inspect title, creator, language and publication metadata from an EPUB package entirely in your browser without uploading the selected file.

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Private Audio to Text Transcriber

Turn speech in an owned audio or video file into editable text with a pinned multilingual model that runs only in this browser.

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Private Audio to SRT Subtitle Maker

Create timed SRT captions from speech in an owned recording without sending the audio or generated subtitles to a transcription service.

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Private Audio to WebVTT Caption Maker

Generate WebVTT captions for an owned audio or video clip locally, preserving the recording on your device throughout recognition.

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Private Image to Text OCR

Recognize English text in a signature-verified JPEG, PNG, WebP or BMP image with a pinned local OCR worker and no image upload.

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