Automatically crop transparent borders from PNG logos, icons and sprites. Add transparent padding or a square canvas, preview the results and download individual PNGs or a batch ZIP.

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Batch image renamer

Rename JPG, PNG, WebP and GIF images in a batch with a numbered filename pattern. Preview old and new names, then download a ZIP and CSV rename map.

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Duplicate photo finder

Find exact duplicate JPG, PNG and WebP photos, review matching groups, and download a CSV report plus a ZIP containing one copy of each image.

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Photo print size and PPI checker

Check whether JPG, PNG or still WebP photos have enough pixels for a chosen print size and target PPI, including fit and crop-to-fill layouts.

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Documents

Sewing pattern assembler

Arrange the pages of a PDF sewing pattern on one large printable sheet.

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Document to Markdown

Convert supported Office documents, PDFs and text files into editable Markdown.

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PDF tables to Excel

Extract detected tables from a text-based PDF into an Excel workbook.

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Searchable scanned PDF

Add an English searchable text layer to scanned PDF pages.

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Compare PDF versions

Compare two PDF versions and highlight visual differences in a downloadable report.

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PDF text redactor

Permanently remove selected text matches from text-based PDF pages.

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Word to EPUB

Turn a DOCX manuscript into a reflowable EPUB ebook.

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EPUB error checker

Validate an EPUB and download a report of structural errors and warnings.

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Office file converter

Convert supported Word, Excel and PowerPoint files into PDF.

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Merge PDF

Combine PDF documents into one file in your chosen order.

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Extract PDF pages

Save selected PDF pages as a new document, in the order you specify.

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Rotate PDF

Rotate every page in a PDF clockwise without uploading it.

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Images to PDF

Turn JPG, PNG or WebP photos into a single PDF with one image per page.

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PDF page numbers

Add page numbers to the bottom of every PDF page.

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PDF watermark

Add a text watermark across PDF pages or place a logo in the visual editor.

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PDF metadata editor

Set a PDF title and author or clear its standard document properties.

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Reverse PDF pages

Reverse the page order of a PDF document.

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PDF review response tracker

Extract PDF or XFDF review comments and replies into a response tracker. Edit responses, owners and statuses, then reload the CSV with the next review round.

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Markdown project packager

Bundle selected Markdown notes with linked notes and images into a portable ZIP. Repair local links and download a missing-link report.

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Split PDF

Split a PDF into individual pages, fixed-size groups or custom page ranges.

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Edit PDF

Add text, images, shapes, highlights, drawings and stamps to PDF pages.

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Sign PDF

Draw, type or upload a visual signature and place it on your PDF.

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Organize PDF

Reorder, duplicate, rotate or remove PDF pages using page previews.

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Remove PDF pages

Select unwanted PDF pages and download a document containing the remaining pages.

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Crop PDF

Select a page region and apply a crop to one page or the entire PDF.

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PDF form editor

Fill existing PDF forms or create interactive fields, checkboxes, radio groups and lists.

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Scan to PDF

Photograph document pages, correct their perspective and combine them into a PDF.

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Compress PDF

Reduce PDF size using selectable image quality and resolution.

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Unlock PDF

Remove PDF encryption using the document password.

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Protect PDF

Encrypt a PDF with a password before sharing it.

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Repair PDF

Attempt to recover and rewrite a damaged but readable PDF.

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Pages to PDF

Extract an embedded PDF preview from Apple Pages or convert supported legacy documents.

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PDF to Word

Convert PDF text and layout into an editable Word document.

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PDF to PowerPoint

Turn PDF pages into editable slides or appearance-preserving slide images.

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PDF to images

Convert PDF pages to PNG, JPG, WebP, TIFF or BMP. Choose pages and DPI, preview each image and download individual files or a ZIP.

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PDF to SVG

Export PDF pages as SVG graphics for compatible design applications.

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PDF to text

Extract selectable text from PDF pages into UTF-8 TXT. Choose pages, keep page breaks and download a report of pages with no text.

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PDF to EPUB

Turn selectable PDF text into a reflowable EPUB ebook.

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PDF to FB2

Extract PDF text into a FictionBook ebook.

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PDF to DjVu

Convert PDF pages into a compact multipage DjVu document.

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DjVu to PDF

Convert multipage DjVu scans into a PDF document.

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XML to PDF

Print structured XML as a readable indented PDF document.

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HTML to PDF

Render safe HTML content as a PDF document.

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Summarize PDF

Create a draft summary of selected PDF pages using a locally hosted language model.

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Translate PDF

Translate extracted PDF text into an available language and download a readable document.

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Markdown to HTML

Convert Markdown headings, lists, links, code and tables into a standalone HTML document with readable mobile styles.

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Resize PDF pages

Convert PDF page sizes to A4, Letter, A3 or A5. Fit page content without stretching and keep portrait or landscape orientation.

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PDF booklet maker

Arrange PDF pages for double-sided booklet printing. Choose folded section sizes, left or right binding, and download a page-order report.

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Split scanned booklet PDF pages

Split two-page PDF scans into individual pages. Restore normal reading order or undo booklet imposition, then download the reordered PDF and page map.

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Extract embedded files from PDF

Download files embedded inside a PDF as a ZIP, with a CSV list of original names, safe output names, sizes and descriptions.

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Extract PDF links to CSV

Extract clickable hyperlinks and internal page links from a PDF into a CSV with source pages, targets and visible anchor text for review.

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Export PDF bookmarks to CSV

Extract a PDF bookmark outline into CSV with heading levels, linked PDF page numbers, page labels and external-link status. Review the first entries before downloading.

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PDF page size checker

Find mixed A4, Letter, Legal, A3 and custom page sizes in PDFs before printing. Check visible page dimensions, rotation and orientation, then download a page-by-page CSV report.

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Business

Barcode label generator

Turn product codes into a printable sheet of barcode labels.

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Spreadsheet to calendar

Convert a CSV timetable into an importable calendar file.

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Bulk certificate generator

Create a printable PDF certificate for every participant in your list.

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UTM link builder

Add campaign tracking parameters to a link without visiting it.

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CSV delimiter converter

Change comma, semicolon, tab or pipe separators for Excel and Sheets imports.

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CSV header mapper

Rename spreadsheet column headers to match an import template.

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CSV file merger

Combine spreadsheet exports by matching column names, with an optional source filename column.

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CSV row splitter

Split a CSV into smaller files with repeated headers and download them together as a ZIP.

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Compare CSV files

Compare two CSV files by a unique key. Download added, removed and changed cells with an original-versus-updated report.

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Join CSV files by key

Join two CSV files using matching ID columns. Choose an inner, left or full outer join and download unmatched rows separately.

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CSV date format converter

Normalize dates in CSV columns to YYYY-MM-DD, DD/MM/YYYY or MM/DD/YYYY. Preserve original values and review ambiguous or invalid dates in a separate report.

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CSV column profiler

Profile CSV columns for empty cells, distinct values, repeated entries and whitespace differences. Download column statistics, value frequencies and JSON.

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ICS to CSV converter

Convert ICS calendar files to CSV for Excel or Google Sheets. Export event titles, dates, time zones and recurrence details, with JSON data and a review report.

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Excel to CSV converter

Convert an XLSX workbook to separate CSV files for each worksheet. Choose formatted or raw saved values, include hidden sheets, and download a ZIP, JSON and review report.

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Keep latest row per ID in CSV

Remove duplicate CSV records by one or more ID columns while keeping the row with the latest or earliest date. Download selected, removed and review rows with a decision report.

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Filter CSV rows by column

Filter a CSV file by a value in one column. Keep matching rows, review the other rows, and download both CSV files without losing quoted commas or original column order.

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CSV to SQL INSERT statements

Convert a CSV file into a downloadable SQLite or PostgreSQL script with CREATE TABLE and INSERT statements. Keep every value as text, or explicitly export blank cells as NULL.

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CSV to Excel converter

Convert CSV to XLSX online while preserving leading zeros, long IDs, phone numbers and postal codes as text in Excel.

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CSV encoding converter

Convert a CSV or TSV from Windows-1252, UTF-16, Shift JIS and other selected text encodings to UTF-8 for Excel and spreadsheet imports.

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VCF to CSV contact converter

Convert a vCard VCF contact export into a spreadsheet-ready CSV with names, phone numbers, email addresses, organizations, postal addresses and notes.

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Unpivot CSV to long format

Unpivot wide CSV or TSV data into a tidy long-format table while repeating chosen identifier columns beside each field name and value.

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CSV to VCF contact converter

Convert a contacts CSV or TSV into a vCard VCF file for phone and address-book import, with explicit first-name, surname, phone and email column mapping.

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Excel formula finder

Find every cell formula in an XLSX workbook, including hidden sheets, and export sheet names, cell addresses and likely external workbook references to CSV.

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HTML table to CSV converter

Extract a real HTML table from a web page or saved HTML file into a spreadsheet-ready CSV, including rows with merged cells.

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Design

3D model optimizer

Remove duplicate and unused data from a self-contained GLB model.

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Embroidery file converter

Convert supported stitch files between common embroidery machine formats.

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Laser-cut box generator

Generate an SVG cutting layout for an open box with finger joints.

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3D organizer generator

Create a printable STL tray with a custom grid of compartments.

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Website font slimmer

Keep only the characters you need and export a smaller WOFF2 font.

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Favicon generator

Create favicon.ico and PNG app icons from one image.

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Color contrast checker

Check contrast between two colors against WCAG 2.x text thresholds.

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Audio & video

Video specification checker

Inspect video dimensions, codec, frame rate and audio details before delivery.

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Recording pause remover

Remove quiet gaps from an audio recording using a silence threshold.

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Subtitle timing fixer

Align an SRT subtitle file with the speech timing of a recording.

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Sheet music to MusicXML

Recognize printed sheet music and export editable MusicXML.

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Podcast loudness normalizer

Adjust a recording toward a consistent loudness target.

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Video converter

Convert videos between MP4, WebM, MOV, MKV and animated GIF with explicit codec settings.

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Video compressor

Reduce video size using a chosen resolution, quality or target size.

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HLS video packager

Create an HLS playlist and video segments in a downloadable ZIP.

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Crop video

Select a video region visually and export a cropped MP4.

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Trim video

Select start and end times and export the chosen video segment.

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Extract audio from video

Save a video soundtrack as MP3, AAC or Opus.

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Video thumbnail

Choose a video timestamp and save the frame as JPG or PNG.

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Merge videos

Join video clips in your chosen order into a single MP4.

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SRT and WebVTT converter

Convert SRT subtitles to WebVTT or VTT captions to SRT. Keep timestamps and basic formatting, with an optional plain text mode and conversion report.

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WAV channel splitter

Split a stereo or multichannel WAV into separate mono WAV files. Choose all channels or one channel, preserve sample bytes and sample rate, and download a ZIP with a channel report.

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Utilities

GPS route converter

Convert route coordinates between GPX, KML and GeoJSON.

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Broken-link checker

Check up to 30 links from a public webpage and download a status report.

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JSON formatter

Validate JSON and download a readable or compact version.

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CSV to JSON

Convert CSV rows into JSON objects while preserving text values.

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JSON to CSV

Convert a JSON array of objects into a spreadsheet-ready CSV.

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Base64 converter

Encode Unicode text as Base64 or decode Base64 back to text.

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Text cleanup

Remove duplicate lines, trim whitespace or sort a pasted list.

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File checksum

Calculate a SHA-256 or SHA-512 fingerprint for a file on your device.

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ZIP creator

Bundle selected files into one ZIP archive without uploading them.

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ZIP extractor

Extract files from a ZIP archive locally and download them individually.

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Text case converter

Change text to uppercase, lowercase or title case.

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Word and character counter

Count words, characters, sentences and paragraphs, estimate reading time and inspect frequent words.

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Text comparison

Compare two texts and download a line-by-line difference report.

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URL slug generator

Turn a title into a clean, lowercase URL slug.

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URL encoder and decoder

Encode or decode text for use inside a URL component.

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HTML entity converter

Encode HTML special characters or decode common and numeric entities.

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JSON to TypeScript

Infer a TypeScript type declaration from a JSON example.

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JSON key sorter

Sort object keys throughout JSON while keeping array order.

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CSV column selector

Keep selected CSV columns and place them in a chosen order.

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Transpose CSV

Swap the rows and columns of a CSV table.

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Markdown table generator

Turn CSV data into a Markdown table for documentation.

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UUID generator

Generate random version 4 UUIDs for identifiers and testing.

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Password generator

Generate random passwords locally using letters, numbers and symbols.

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Unix timestamp converter

Convert Unix seconds, milliseconds or an ISO date into UTC time.

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Pomodoro timer

Alternate focused work sessions and breaks with a configurable Pomodoro timer.

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Countdown timer

Run named countdowns with pause, restart and an audible completion alert.

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Online stopwatch

Measure elapsed time, record laps and download lap timings as CSV.

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Online alarm clock

Set a local-time alarm with a test sound and snooze controls.

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Age calculator

Calculate age in calendar years, months and days, and find the next birthday.

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File workflow builder

Chain compatible PDF, image and video operations into a reusable ordered workflow.

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Engineering

BOM revision comparator

Compare two exported bills of materials and identify added, removed or changed parts.

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IPv4 subnet calculator

Calculate network addresses, masks and usable ranges from IPv4 CIDR notation.

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Linear signal scaler

Convert batches of raw sensor readings into engineering values using two known endpoints.

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Engineering unit converter

Convert length, mass, pressure, temperature, area, volume, speed and data storage units.

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Modbus register map checker

Check Modbus register addresses, overlapping ranges and declared data widths. Download a findings CSV and printable register map documentation.

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Cable schedule checker

Find duplicate cable IDs, missing endpoints and port conflicts in a cable schedule CSV. Print matching labels for both ends of each cable.

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Sensor CSV time alignment

Align sensor CSV recordings by timestamp, apply known time offsets and find unmatched samples. Export a shared timeline without interpolation.

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PLC–HMI tag checker

Compare PLC tag definitions with HMI references in CSV exports. Find missing PLC tags, duplicate references and declared data type mismatches.

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DMS to decimal coordinates converter

Convert latitude and longitude between degrees, minutes, seconds and decimal degrees in a CSV or TSV, preserving every original row and column.

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