Rename multiple files using patterns and download a ZIP
Click here or drag and drop multiple files to rename
Choose File
Tokens: {index}, {name}, {ext}, {YYYY}, {MM}, {DD}
Tokens
{index} — sequential number (uses Start Index and padding)
{name} — original file name without extension
{ext} — original file extension
{YYYY} — 4-digit year
{MM} — 2-digit month
{DD} — 2-digit day
Examples
Click the upload area or drag-and-drop multiple files
Use tokens like {index}, {name}, {ext}, set start index and padding
Generate and download a ZIP containing all renamed files
Use {index}, {name}, {ext}, {YYYY}, {MM}, {DD} to craft names
Everything runs in your browser — no uploads required
Download all renamed files together as a single ZIP
A: Use {index}, {name}, {ext}, {YYYY}, {MM}, {DD}.
A: Include {index} or ensure your pattern yields unique names. We also de-duplicate automatically by appending a counter.
A: No. All processing is local in your browser and a ZIP is generated client-side.
Decode and analyze JWT tokens
Generate JWT tokens with custom claims and headers
Build cURL commands with custom headers, methods, and options
Hash passwords using bcrypt with configurable cost factor
Test regular expressions with live highlighting and match details
Convert between UTC, local time, and Unix timestamp
Escape or unescape special characters for JSON/JS strings
Format and validate JSON, XML, YAML, and SQL with syntax highlighting
Encode text to Base64 format
Decode Base64 text to original format
Convert images to Base64 data URLs
Convert Base64 data to images with preview and download
Convert text to ASCII codes and vice versa
Pick solid colors or gradients and copy the CSS value
Interactive color picker with multiple format output
Extract colors from images with pixel-perfect precision
Generate multiple favicon sizes from text, emojis, or images
Parse and explain cron expressions in human-readable format
View and explore JSON data in a tree structure
Generate unique identifiers easily.
Generate various hashes for your input.
Rename multiple files using patterns and download a ZIP
Rename multiple files using patterns and download a ZIP
Click here or drag and drop multiple files to rename
Choose File
Tokens: {index}, {name}, {ext}, {YYYY}, {MM}, {DD}
Tokens
{index} — sequential number (uses Start Index and padding)
{name} — original file name without extension
{ext} — original file extension
{YYYY} — 4-digit year
{MM} — 2-digit month
{DD} — 2-digit day
Examples
Click the upload area or drag-and-drop multiple files
Use tokens like {index}, {name}, {ext}, set start index and padding
Generate and download a ZIP containing all renamed files
Use {index}, {name}, {ext}, {YYYY}, {MM}, {DD} to craft names
Everything runs in your browser — no uploads required
Download all renamed files together as a single ZIP
A: Use {index}, {name}, {ext}, {YYYY}, {MM}, {DD}.
A: Include {index} or ensure your pattern yields unique names. We also de-duplicate automatically by appending a counter.
A: No. All processing is local in your browser and a ZIP is generated client-side.