Jupiter Text Cleaner (Offline, No Cloud)

What is Jupiter Text Cleaner?

Jupiter Text Cleaner is a free online tool designed to help you clean your text by identifying and removing unwanted or problematic Unicode characters. These can include invisible characters, unusual formatting symbols, and other non-standard elements that might cause issues when pasting text into different applications or systems.

This tool does NOT use AI. It is a rules-based text processor that applies deterministic pattern matching to clean your text. This means:

• Predictable & Repeatable: The same input with the same options will always produce the same output.
• Transparent: You control exactly which character types are removed or converted.
• Safe: No machine learning, no external API calls, no data collection—just straightforward text processing.

Why Use It?

• Ensure Text Compatibility: Remove characters that can break layouts or cause display errors.
• Clean AI-Generated Text: AI models sometimes output text with hidden formatting or unusual Unicode – this tool helps normalize it.
• Improve Readability: Get rid of distracting or unnecessary symbols.
• Prepare Text for Other Uses: Ensure your text is clean before using it in documents, code, social media, or any other platform.

Is It Secure?

Yes, 100% secure and private. Jupiter Text Cleaner processes all text directly in your web browser (client-side). No data is ever sent to our servers or any third party. Your text remains confidential and is only visible to you.

Because this is a rules-based tool (not AI), there are no unpredictable outputs or "hallucinations"—just reliable, consistent text cleaning you can trust.

Is It Free?

Yes, Jupiter Text Cleaner is completely free to use. There are no hidden costs or limitations.

How to Use Jupiter Text Cleaner:

1. Paste Your Text: Copy your text and paste it into the "Input Text" area on the left.
2. Select Cleaning Options:
   • Choose specific types of characters or formatting to remove from the "Options Panel".
   • For a quick start, click the "Select Defaults" button to pre-select commonly removed items.
3. Clean the Text: Click the "Clean Text" button.
4. Get Your Cleaned Text: The processed text will appear in the "Output & Actions" area on the right. You can then copy it using the "Copy to Clipboard" button.

Transcript Cleanup Feature

The Clean Transcript option is designed for cleaning up video or audio transcripts (e.g., from YouTube, Zoom, or other transcription services). When enabled, it:

• Removes Timestamps: Automatically strips out time markers like "0:15", "1:23:45", etc.
• Stitches Fragmented Lines: Joins broken lines into coherent sentences and paragraphs.
• Preserves Paragraph Breaks: Intelligently creates paragraph breaks when sentences end with punctuation followed by a new sentence starting with a capital letter.
• Cleans Up Spacing: Removes extra whitespace and fixes punctuation spacing issues.

Tip: This is ideal for turning raw transcript output into readable, flowing text.

AI Fingerprint Analysis - What We Target & Why

Jupiter Text Cleaner's default settings are specifically designed to target AI-generated text fingerprints - invisible characters and formatting artifacts that are commonly introduced by AI models but rarely appear in human writing. Here's what we target and why:

Invisible Spaces & Formatting

• Zero-Width Spaces (\u200B) - AI Fingerprint: AI models frequently insert these invisible characters for text alignment or formatting. Human Writing: Almost never used intentionally.
• Non-Breaking Spaces (\u00A0) - AI Fingerprint: AI often overuses these to prevent line breaks. Human Writing: Used sparingly for specific formatting needs.
• Unicode Spaces (\u2000-\u200A, \u202F, \u205F, \u3000) - AI Fingerprint: AI models include various space characters for layout control. Human Writing: Standard spaces only; these are technical artifacts.

Smart Punctuation & Quotes

• Smart Quotes (\u201C\u201D\u2018\u2019) - AI Fingerprint: AI models consistently use typographic quotes. Human Writing: Mixed usage; many people use standard quotes.
• Angle Quotes (\u2039\u203A\u00AB\u00BB) - AI Fingerprint: AI includes international quote variations. Human Writing: Rare outside specific languages.
• Prime Symbols (\u2032\u2033) - AI Fingerprint: AI uses technical notation for measurements. Human Writing: Typically uses apostrophes/quotes.
• Em/En Dashes (\u2014, \u2013) - AI Fingerprint: AI overuses these for dramatic effect. Human Writing: Used sparingly and appropriately.

Directional & Control Characters

• Bidirectional Formatting (\u202A-\u202E, \u2066-\u2069) - AI Fingerprint: AI models insert these for text direction control. Human Writing: Never manually added.
• Arabic Letter Mark (\u061C) - AI Fingerprint: AI RTL text processing artifact. Human Writing: Not used in normal text.
• Mongolian Vowel Separator (\u180E) - AI Fingerprint: Unicode processing artifact. Human Writing: Extremely rare.
• Variation Selectors (\uFE00-\uFE0F) - AI Fingerprint: AI uses these for emoji/text variation. Human Writing: Never manually inserted.

Technical & Mathematical Symbols

• Fraction/Division Slashes (\u2044, \u2215) - AI Fingerprint: AI includes mathematical notation. Human Writing: Uses standard forward slash.
• Soft Hyphens (\u00AD) - AI Fingerprint: AI hyphenation artifacts. Human Writing: Manual hyphens only.
• Control Characters (\u0000-\u001F, \u007F-\u009F) - AI Fingerprint: System processing artifacts. Human Writing: Never present.

Why These Are AI Fingerprints

Pattern Recognition: These characters appear consistently in AI-generated text across different models and prompts, but are virtually absent in human writing.

Technical Origin: Most result from AI models' Unicode processing, text generation algorithms, or training data artifacts.

Invisibility: Many are invisible or rarely seen, making them perfect "watermarks" for AI content.

AI Styling Removal - Standardize AI-Generated Text

The AI Styling Removal options target distinctive patterns and formatting that are commonly found in AI-generated text but rarely appear in natural human writing. These options help standardize text to appear more human-like:

Master Control

• Standardize All AI Formatting: Enables all AI styling removal options at once for comprehensive text standardization.

Content Styling

• Remove Emojis & Symbols: Removes emojis, emoticons, and decorative symbols that AI often includes for emphasis or visual appeal.
• Remove Bold/Italic Formatting: Strips Markdown-style bold (**text**) and italic (*text*) formatting that AI frequently uses.
• Remove Excessive Punctuation: Reduces multiple consecutive punctuation marks (!!!, ???, ...) to single characters.

Language Patterns

• Normalize AI Capitalization: Converts ALL CAPS words to lowercase (except common acronyms) that AI often uses for emphasis.
• Remove Repeated Words/Phrases: Eliminates duplicate words or phrases that AI sometimes generates due to repetition patterns.
• Remove Overly Formal Language: Strips formal transition words and phrases that AI commonly uses to sound authoritative.
• Remove AI Numbered Lists: Removes numbered list formatting (1., 2., 3.) that AI frequently uses for structured responses.

Why These Are AI Indicators

Emojis & Symbols: AI often includes decorative elements to enhance engagement, while human writing tends to be more conservative.

Excessive Formatting: AI uses bold/italic for emphasis much more frequently than typical human writing.

Formal Language: AI tends to use formal transition words and phrases to sound more authoritative and structured.

Capitalization Patterns: AI often uses ALL CAPS for emphasis, while humans typically use it more sparingly.

Preserve Standard Formatting Feature

The Preserve Standard Formatting options protect common writing elements that are normally part of well-structured text and shouldn't be removed during cleaning. When enabled, these options:

• Preserve Bullet Points: Protects bullet points (•), dash bullets (-), asterisk bullets (*), numbered lists (1., 2.), and lettered lists (a., b.) with their indentation.
• Preserve Carriage Returns: Keeps carriage return characters (\r) that are often used in Windows text files and some document formats.
• Preserve Indentation: Protects tab characters and spaces used for indentation, maintaining code blocks, nested lists, and formatted text structure.
• Preserve Paragraph Breaks: Maintains double newlines (\n\n) that separate paragraphs, ensuring proper document structure.

Tip: These options are enabled by default when using "Select Defaults" to ensure normal writing formatting is preserved while still cleaning problematic characters.

Helpful Features:

• Dark/Light Theme Toggle: Click the sun/moon icon in the header to switch between light and dark modes. Your preference is saved for future visits.
• Undo: Made a mistake? Click "Undo" to restore your original input text before the last clean operation.
• Character Count: See the character count for your input text. A warning appears for very large texts (50,000+ characters) that may slow performance.
• Em Dash & En Dash Options: Choose how to handle these special dashes—keep them, convert to hyphens, convert to commas, or remove them entirely.
• Resizable Text Areas: Drag the bottom-right corner of input/output areas to resize them.
• Select Defaults: Quickly apply a common set of cleaning rules optimized for AI-generated text with standard formatting preserved.
• Load Test Text: Load sample text containing various problematic characters to see the cleaner in action.
• Reveal Codes (Input/Output): Click "Reveal Codes" to see hidden or special characters displayed as readable codes (e.g., [ZWS], [NBSP]). This helps you understand what's being targeted or what remains.
• Word Count: See an accurate word count for your cleaned output text.
• Clear Buttons: "Clear Output" clears only the output area. "Clear All" clears both input and output.