OS — English Dictionary

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Language

Word-form referencesOld Saxon Old Style Owen Sound offscreen operating system ordinary seaman outsize overseas oversize

Pronunciations (2)

/ˌoʊ ˈɛs/
ˌoʊ ˈɛs

Noun

An Ordnance Survey map.
Usage
- UK usage
Examples

We've got an OS of the Cuckmere area.

Calton Hill in Edinburgh is located at OS grid ref NT262741.

Noun

(computer science) software that controls the execution of computer programs and may provide various services

Synonyms
operating system
Broader terms
software software program computer software software system software package package
the left eye

Synonyms
oculus sinister
Broader terms
eye oculus optic

Word forms

OSesOSsOS's

Code Formatters

Format and beautify Java, Python, JavaScript, JSON, HTML and more; adjust indentation, spacing and line breaks.

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Audio Editing & Effects

Trim, join or split recordings, remove silence or noise, and adjust volume, speed, pitch or channels.

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Spreadsheet Tools

Open and edit CSV or Excel sheets, format tabular text, and convert CSV to Excel or SQL.

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Markdown Tools

Write and preview Markdown, render Mermaid diagrams, and convert Markdown, HTML and tables between formats.

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EPUB to Text

Text Tools

Compare passages, count words and keywords, sort or replace lines, and view DOCX text.

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Dictionaries

Look up Chinese meanings, synonyms and antonyms, or find IPA pronunciations in multiple languages.

Audio Conversion & Playback

Convert between MP3, WAV, FLAC and more, play audio or raw PCM, and inspect or edit audio metadata.

JSON & Data Tools

Inspect, compare and validate JSON; test JSONPath expressions, or convert data to CSV, YAML and XML.

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Speech Tools

Transcribe audio to text, generate speech from text, or record your voice in the browser.

Video Tools

Convert and compress video, trim or join clips, resize frames, and extract audio.

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Video Playback & Recording

Play local or streaming video, record your screen or camera, and use your camera as an online mirror.

PDF Tools

Compress or merge PDFs, split and rearrange pages, convert pages to images, and view or compare documents.

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Image Tools

Convert image formats, resize or crop photos, compress files, compare pictures, and extract text with OCR.

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Image Creation

Capture and beautify screenshots, turn text into images or GIFs, draw on a whiteboard, and create word clouds or favicons.

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Subtitle Tools

Edit SRT or VTT captions with a video preview, shift timing, convert formats, and manage subtitle tracks.

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Archive Tools

Open ZIP, 7Z, RAR or TAR files, extract selected contents, and create new archives with optional ZIP/7Z passwords.

Encoders | Decoders

Encode and decode Base64 or Base32, escape URLs, HTML and Unicode text, and inspect JWT contents.

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Number Tools

Convert number bases and values between binary, decimal and hex; turn numbers into words or text into binary.

Calculators

Work out percentages and fractions, summarize statistics, and calculate grades, discounts or aspect ratios.

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Time Tools

Show an online clock, run a countdown or stopwatch, and calculate dates, ages or time-zone differences.

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Network Tools

Check your IP and IPv6 connection, inspect HTTP requests or HAR files, and calculate CIDR address ranges.

Unit Conversions

Convert length, weight, temperature, data storage and other units.

Color Tools

Convert HEX, RGB and HSL values, extract colors from an image, check contrast, or test your display with solid colors.

QR Codes & Barcodes

Generate and scan QR codes or barcodes, including QR codes for links and Wi-Fi networks.

Developer & Security Tools

Generate hashes, UUIDs and passwords, test regular expressions, create URL slugs and check file permissions.

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Utility Tools

Check screen resolution and refresh rate, measure with a screen ruler, test keys, or read from a teleprompter.

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Games

2048, Minesweeper, Sudoku, Gomoku, Tank Battle

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