Your local toolbox.
Choose a job. Each ready tool processes files on your device—not on somebody else’s server.
Merge PDF
Arrange and combine PDFs without sending a page anywhere.
Split PDF
Extract chosen pages or save every PDF page separately.
Organize PDF
Reorder, rotate, and remove PDF pages with visual previews.
PDF Watermark
Place text or image watermarks on selected PDF pages.
Add Page Numbers
Add configurable numbering to selected PDF pages.
Compress PDF
Reduce scan and image-heavy PDF sizes entirely in your browser.
Sign PDF
Draw or upload a signature and place it visually on a PDF page.
PDF to Text
Extract selectable text from PDF pages into clean text files.
PDF Redactor
Permanently remove marked page regions by flattening the PDF.
Images to PDF
Arrange common image files into a clean downloadable PDF.
Text to PDF
Turn pasted text or a text file into a clean, searchable PDF.
PDF Metadata Editor
Review and change PDF title, author, subject, and keywords.
PDF Form Flattener
Make completed PDF form values visible but no longer editable.
Grayscale PDF
Convert every visible PDF page into printable grayscale artwork.
Crop PDF Pages
Trim uniform margins from every PDF page without rasterizing it.
Remove Blank PDF Pages
Detect and remove empty or nearly empty pages from a PDF.
Add PDF Headers & Footers
Add reusable header, footer, and page-number text to a PDF.
Change PDF Page Size
Fit PDF pages onto A4, A5, Letter, or Legal paper sizes.
Compress Image
Shrink JPG, PNG, and WebP images directly on your device.
Format Converter
Convert common image formats with no upload or waiting room.
Resize & Crop Images
Resize batches or create exact centered crops without uploads.
Image Watermark
Apply text or image watermarks to image batches locally.
Image Collage
Arrange images into a configurable collage or contact sheet.
SVG Converter
Convert sanitized SVG artwork into PNG or WebP images.
Favicon Generator
Create ICO, PNG, manifest, and HTML favicon files in one ZIP.
GIF Maker
Turn an ordered image sequence into an optimized animated GIF.
Optimize GIF
Rebuild an animated GIF with a smaller, cleaner local color palette.
Resize GIF
Resize every GIF frame while preserving its animation and aspect ratio.
Reverse GIF
Reverse an animated GIF frame by frame and rebuild its palette locally.
GIF to Frames
Extract up to 500 animated GIF frames as ordered PNG files in a ZIP.
Color Palette Extractor
Find dominant image colors and export reusable CSS or JSON.
Rotate & Flip Images
Rotate, mirror, and reformat image batches in one pass.
Social Image Generator
Export one image into practical social and sharing dimensions.
Image Effects
Adjust brightness, contrast, color, grayscale, and blur in batches.
Rounded Images & Borders
Add rounded corners, borders, padding, and transparent backgrounds.
Trim Transparent Pixels
Crop transparent outer pixels and keep the visible image at its exact bounds.
Replace Image Color
Swap a selected color range while preserving every pixel's transparency.
Add Text to Image
Place readable outlined text at a precise position on an image.
Expand Image Canvas
Add transparent or colored space evenly around an image.
Pixelate Images
Create crisp pixel-art effects with an adjustable block size.
Duotone Images
Map image shadows and highlights to a custom two-color palette.
Posterize Images
Reduce color levels for bold graphic and print-style effects.
Image to ASCII Art
Turn an image into adjustable text artwork using local pixels.
Remove Image Background Color
Turn a selected flat background color transparent with feathered edges.
Split Image into Tiles
Divide one image into an even grid and download every tile as a ZIP.
Sprite Sheet Generator
Arrange ordered images into a transparent, uniform sprite sheet.
Image Difference Map
Measure pixel differences between two images and export a heat map.
Encrypt File
Protect any file with AES-GCM encryption in your browser.
Split File into Parts
Divide a large file into numbered byte-exact parts with a manifest.
Join File Parts
Validate and reconstruct a file from a complete set of numbered parts.
Batch File Renamer
Apply a numbered naming template and export renamed copies in a ZIP.
File Type Detector
Identify common file formats from their content signatures, not extensions.
File Checksum
Generate and compare SHA checksums without uploading files.
Duplicate File Finder
Identify files with identical contents using local SHA-256 hashes.
QR Code Studio
Generate custom QR codes or decode them from an image.
CSV & JSON Converter
Convert quoted CSV, TSV, and JSON data without uploading it.
YAML & JSON Converter
Convert nested YAML and JSON documents locally in either direction.
CSV to SQL
Turn CSV or TSV rows into typed CREATE TABLE and INSERT statements.
SQL Formatter
Format standard, PostgreSQL, MySQL, SQLite, or SQL Server queries.
HMAC Generator
Sign text with HMAC-SHA-256, SHA-384, or SHA-512 using Web Crypto.
JSON to TypeScript
Generate nested TypeScript interfaces and types from example JSON data.
JSON Schema Generator
Infer a JSON Schema Draft 2020-12 document from example values.
.env Validator & Formatter
Find malformed or duplicate environment variables and normalize the file.
HTTP Header Parser
Convert raw request or response headers into duplicate-safe JSON.
INI & JSON Converter
Convert INI configuration sections and typed values to JSON and back.
JSON Flattener
Flatten nested JSON into portable dot paths or rebuild the original structure.
JSON Path Finder
List safe JSONPath expressions with the type and value at each location.
JSON Merger
Deep-merge multiple JSON objects with configurable array handling.
JSON Difference
Find added, removed, and changed values using precise JSON Pointer paths.
JSON Array Sorter
Sort primitive or object arrays by nested text or numeric property paths.
JSON Array Deduplicator
Remove repeated JSON values or objects sharing a nested property value.
Query String & JSON Converter
Convert URL query parameters to JSON and preserve repeated values in both directions.
Text & Hex Converter
Encode Unicode text as UTF-8 hexadecimal bytes or decode bytes back to text.
Text & Binary Converter
Convert Unicode text to 8-bit UTF-8 binary bytes and decode them locally.
Unicode Inspector
Inspect code points, decimal values, UTF-8 bytes, and UTF-16 units.
Unicode Normalizer
Apply NFC, NFD, NFKC, or NFKD normalization and optionally remove accents.
CSS Formatter
Expand compact CSS into readable nested rules with two- or four-space indentation.
CSS Minifier
Remove comments and unnecessary CSS whitespace while preserving quoted values.
HTML Formatter
Indent HTML structure while preserving scripts, styles, and preformatted content.
HTML Minifier
Remove ordinary comments and redundant HTML whitespace without touching raw content.
CSS Gradient Generator
Design a positioned two-color linear gradient and copy its CSS declaration.
CSS Box Shadow Generator
Preview offsets, blur, spread, color, and inset CSS box shadows.
CSS Border Radius Generator
Preview and generate independent CSS radius values for all four corners.
CSS Clamp Calculator
Calculate fluid responsive CSS sizing between viewport and value limits.
Color Contrast Checker
Measure color contrast against WCAG AA, AAA, large-text, and UI thresholds.
PX & REM Converter
Convert CSS pixel and root-relative REM lengths using a configurable root size.
Aspect Ratio Calculator
Reduce image or video proportions and calculate a matching target dimension.
Cubic Bezier Generator
Create and interactively preview custom CSS transition timing functions.
Date Difference Calculator
Calculate elapsed or inclusive days, weeks, and hours between calendar dates.
Business Days Calculator
Count Monday-to-Friday workdays while excluding custom weekday holidays.
Time Zone Converter
Convert an explicit ISO instant into a daylight-saving-aware IANA time zone.
Duration Converter
Convert milliseconds, seconds, minutes, hours, and days with ISO 8601 output.
IPv4 Subnet Calculator
Calculate CIDR boundaries, masks, broadcast address, and usable host range.
IPv4 Address Converter
Convert dotted IPv4 addresses into integer, hexadecimal, and binary forms.
IPv4 Range to CIDR
Summarize an inclusive IPv4 address range with the smallest exact CIDR set.
MAC Address Formatter
Validate, normalize, and classify common 48-bit MAC address notation.
Data Size Converter
Convert bytes and decimal or binary storage units without mixing MB and MiB.
Download Time Calculator
Estimate file transfer time from size, connection speed, and protocol overhead.
Video Bitrate Calculator
Calculate an average video bitrate for a target size, duration, and audio stream.
Image Print Size Calculator
Convert image pixel dimensions and DPI into physical inches and centimeters.
URL Parser
Inspect URL components and duplicate-safe query parameters using browser standards.
Basic Auth Utility
Generate or decode UTF-8 HTTP Basic Authorization headers locally.
Content Security Policy Builder
Build enforce or report-only Content-Security-Policy response headers.
Cookie Header Parser
Parse Cookie and Set-Cookie headers, attributes, and encoded values into JSON.
Text Hash Generator
Generate SHA-256, SHA-384, or SHA-512 text digests in common encodings.
PBKDF2 Key Derivation
Derive configurable password key material using native Web Crypto.
AES Text Encryption
Encrypt and decrypt text with AES-256-GCM and a self-contained JSON payload.
Secure Random Token Generator
Create cryptographically secure hex, Base64, or URL-safe random tokens.
Base32 Encoder & Decoder
Encode UTF-8 text with RFC 4648 Base32 or decode it back locally.
HOTP Generator
Generate RFC 4226 counter-based one-time passwords from a Base32 secret.
TOTP Generator
Generate RFC 6238 time-based one-time passwords using the local device clock.
Subresource Integrity Generator
Create a browser-ready integrity attribute hash for scripts, styles, and web assets.
Markdown to HTML
Convert common Markdown structure into escaped, portable HTML.
HTML to Plain Text
Remove markup, scripts, styles, and comments while preserving readable breaks.
JSON Lines Converter
Convert JSONL or NDJSON records to a JSON array and back again.
CSV Cleaner
Trim fields and remove empty or duplicate rows from CSV and TSV files.
CSV Sorter
Sort CSV or TSV rows by a chosen text or numeric column.
CSV Deduplicator
Remove duplicate CSV rows using all fields or selected matching columns.
CSV Column Selector
Keep only the columns you need from a CSV or TSV file.
CSV Transposer
Swap CSV rows and columns while preserving quoted cell content.
CSV Merger
Combine multiple CSV or TSV files and align columns by their headers.
CSV Splitter
Divide a large CSV into row-limited parts and download them as a ZIP.
CSV Delimiter Converter
Convert between comma, semicolon, tab, and pipe-delimited data safely.
CSV Data Profiler
Inspect column types, unique values, empty cells, ranges, and duplicate rows.
CSV Row Filter
Keep rows matching text, numeric, or empty-value conditions in one column.
CSV Column Renamer
Rename CSV or TSV headers while preserving every data row and quoted cell.
CSV Key Join
Combine two CSV tables with an inner or left join on selected key columns.
CSV Row Sampler
Extract first, last, or repeatable random samples from large CSV files.
File Difference Checker
Compare two text or code files with a clear line-level diff.
Base64 Encoder & Decoder
Encode files as Base64 or restore pasted Base64 data locally.
JSON Formatter & Validator
Validate, format, minify, and sort JSON without sending data away.
XML Formatter & Validator
Validate, format, and minify XML without uploading its contents.
Text Case Converter
Convert text into readable, URL, or programming-friendly casing.
Line Sorter & Cleaner
Trim, sort, deduplicate, and remove blank lines locally.
Batch Find & Replace
Replace text or regular expressions across multiple local files.
URL Encoder & Decoder
Encode or decode URL components, form values, and full URL paths.
HTML Entity Encoder & Decoder
Safely encode markup characters or decode HTML entities locally.
JWT Inspector
Read JSON Web Token headers and claims without transmitting them.
UUID Generator
Create secure UUID v4 identifiers in configurable local batches.
Regex Tester & Replacer
Test regular expressions, inspect captures, and preview replacements.
Text Counter & Analyzer
Count words, characters, structure, reading time, and frequent terms.
Secure Password Generator
Create strong random passwords with configurable character groups.
Unix Timestamp Converter
Convert Unix timestamps and local dates in both directions.
Color Format Converter
Convert hexadecimal colors into normalized HEX, RGB, and HSL values.
Number Base Converter
Convert large signed integers between binary, octal, decimal, hex, and base 36.
URL Query Builder
Build a correctly encoded URL from readable name-value query lines.
Cron Expression Builder
Generate readable hourly, daily, weekly, and monthly cron schedules.
Meta Tag Generator
Create escaped SEO, canonical, Open Graph, and Twitter metadata.
robots.txt Generator
Build crawler access rules and sitemap discovery for a website.
XML Sitemap Generator
Create a standards-compatible XML sitemap from a list of page URLs.
JSON-LD Generator
Generate paste-ready Organization or WebSite schema.org markup.
PDF to Image
Turn PDF pages into crisp images while keeping files local.
Archive Extractor
Inspect and unpack archives safely inside the browser.
Create ZIP
Bundle files into a configurable ZIP archive in your browser.
Metadata Scrubber
Remove hidden image metadata before you share.
Audio Converter
Convert audio locally with a lazy-loaded media engine.
Audio Channel Splitter
Export the left and right stereo channels as separate mono audio files.
Silence Generator
Create a precisely timed silent MP3, WAV, or AAC track locally.
Add Cover Art to Audio
Embed fitted JPG, PNG, or WebP artwork in a fresh compatible MP3.
Audio Metadata Editor
Write clean title, artist, album, genre, and year tags into an MP3.
Audio Trimmer
Cut a precise section from common audio files without uploading.
Audio Volume Changer
Lower, mute, or amplify an audio file with local processing.
Audio Speed Changer
Speed up or slow down audio while preserving its pitch.
Reverse Audio
Reverse an entire audio track and export it in a common format.
Normalize Audio Loudness
Balance perceived loudness for podcasts, music, or broadcast.
Audio Waveform Image
Render a custom PNG waveform from a local audio file.
Merge Audio
Join ordered audio files while normalizing their playback format.
Audio Compressor
Reduce audio file size with practical MP3 bitrate presets.
Fade Audio In & Out
Add smooth, equal-duration fades to both ends of an audio track.
Trim Audio Silence
Detect and remove quiet sections from the beginning and end of audio.
Stereo to Mono
Mix left and right audio channels into a single mono channel.
Video Compressor
Shrink and resize videos locally with practical quality presets.
Crop Video
Crop video to exact pixel dimensions and offsets in your browser.
Reverse Video
Play video backward with optional reversed audio using the local engine.
Add Subtitles to Video
Burn styled SRT or WebVTT captions permanently into a video.
Video Metadata Inspector
Inspect container, codec, resolution, frame rate, bitrate, and audio streams.
Video Speed Changer
Speed up or slow down video while keeping optional audio synchronized.
Resize Video
Reduce video dimensions to practical web and sharing sizes.
Rotate & Flip Video
Correct video orientation or mirror footage locally.
Video to Image Frames
Export a selected video range as JPG or PNG images in a ZIP.
Video Watermark
Apply a text or image watermark to every video frame.
Merge Videos
Arrange and join compatible video clips into one MP4.
Video Contact Sheet
Create a configurable thumbnail storyboard from a video.
GIF to Video
Convert an animated GIF into a broadly compatible MP4.
Video to WebM
Convert common video formats to compact VP9 WebM with optional audio.
Change Video Frame Rate
Convert a video to a standard frame rate from 12 through 60 FPS.
Loop Video
Repeat a complete video two to ten times in one compatible MP4.
Add Audio to Video
Replace a video's sound with a selected audio track and optional looping.
Video Trimmer
Cut a precise section from a video and export a compatible MP4.
Remove Audio from Video
Permanently remove a video's audio track in your browser.
Video to GIF
Turn a short video clip into an optimized animated GIF.
Video to ASCII
Render a short video as animated text and record it locally.
Extract Audio
Save the audio track from a video as MP3, M4A, or WAV.