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Curated
Most used
The tools people reach for every day. Hand-picked — we don’t track usage.
- 01Photo EditorImages
- 02Image CompressorImages
- 03Image ConverterImages
- 04Merge PDFPDF
- 05Compress PDFPDF
- 06Split PDFPDF
- 07Unlock PDFPDF
- 08JSON FormatterData
- 09Regex TesterDeveloper
- 10Diff CheckerDeveloper
- 11QR Code GeneratorUtilities
- 12Password GeneratorSecurity
- 13UUID GeneratorDeveloper
- 14Base64 EncoderDeveloper
- 15Timestamp ConverterDeveloper
- 16Color PickerDesign
Browse 543 tools
01Images
Image tools
Edit, convert, optimize and transform images locally.
Photo Editor
Crop, adjust, filter, annotate and layer photos
OpenScreenshot Studio
Frame screenshots with backgrounds, shadows and annotations
OpenImage Compressor
Make images smaller with a live quality preview
OpenImage Converter
Convert between PNG, JPEG, WebP and AVIF
Image Resizer
Resize by pixels or percentage with aspect lock
02PDF
PDF tools
Work with PDFs privately. Merge, split, organize, sign and convert.
03Data
Data tools
Explore, clean, chart and convert CSV and JSON.
CSV Studio
Explore, profile, clean, chart and export tabular data
OpenJSON Studio
Format, validate, explore and convert JSON
OpenAlso in Data
- CSV AnalyzerColumn types, statistics, distributions and outliers
- CSV CleanerTrim, dedupe, rename, split and convert columns
- CSV ChartsBar, line, histogram, scatter and pie charts
- Duplicate Row FinderCount and remove exact duplicate rows
- Missing Value AnalyzerFind empty cells per column at a glance
- Column SplitterSplit one column into several by a delimiter
04Developer
Developer tools
Formatters, encoders, decoders, generators and references.
05Text
Text tools
Write, clean, count and transform text.
Markdown Editor
Write Markdown with a live, sanitized preview
OpenText Cleaner
Trim, dedupe, sort and clean up messy text
OpenMarkdown Preview
Render a Markdown file full-width
Text Analyzer
Words, sentences, paragraphs, reading time
Word Counter
Count words as you type or paste
Character Counter
Characters with and without spaces, bytes
Reading Time
Estimate reading and speaking time
Remove Duplicate Lines
Keep the first of every repeated line
Sort Lines
Alphabetical, natural or by length
Reverse Lines
Flip the order of lines
Remove Empty Lines
Delete blank lines
Extract URLs
Pull every link out of text
Extract Emails
Find every email address
Extract Hashtags
Collect #hashtags from posts
06Design
Design tools
Color, gradients, CSS, SVG and typography.
Color Picker
Pick and convert HEX, RGB, HSL, HSV and OKLCH
OpenGradient Generator
Linear, radial and conic CSS gradients
OpenAlso in Design
- Palette GeneratorHarmonies, shades, tints and full scales
- Shadow GeneratorLayered CSS box-shadows with live preview
- Border RadiusPer-corner border-radius CSS
- Contrast CheckerWCAG 2 contrast ratio for text and UI
- Type ScaleModular typographic scale as CSS
- Font PairingTry heading and body font combinations
07Files
File tools
Inspect, archive, rename, compare and analyze files.
File Inspector
Type, signature, metadata and hex for any file
ZIP Extractor
Browse a ZIP and extract selected files
Batch Image Processor
Resize, convert and compress many images to a ZIP
ZIP Creator
Bundle files and folders into a ZIP
File Type Detector
Identify a file by its contents, not its name
08Utilities
Utilities
Unit converters and everyday calculators.
09Business
Business tools
Invoices, receipts, quotes and the numbers behind a business.
Invoice Generator
Professional invoices with line items, tax and discounts — saved as PDF
OpenReceipt Generator
Payment receipts as printable PDFs
OpenAlso in Business
- Simple Bill GeneratorA quick bill for a customer
- Expense ReportItemized expenses for reimbursement
- Packing SlipShipment contents without prices
- Profit Margin CalculatorMargin, markup and profit from cost and price
- Markup CalculatorSelling price from cost and markup
- Break-even CalculatorUnits and revenue needed to cover costs
10Social
Social media tools
Post images, captions, hashtags and character limits for every platform.
Social Image Maker
Post images for every platform — photo, background, headline
OpenSocial Character Counter
Live limits for X, Instagram, LinkedIn, TikTok, YouTube, SEO and SMS
OpenCaption Formatter
Instagram-safe line breaks and tidy hashtags
OpenSocial Image Resizer
Fit a photo to any platform size with safe areas
Instagram Post (1080×1080)
Square posts
Instagram Story (1080×1920)
Stories and Reels covers with safe areas
X / Twitter Post Image (1600×900)
In-feed images that don’t get cropped
X / Twitter Header (1500×500)
Profile header with avatar overlap guide
LinkedIn Post (1200×627)
Feed images and article covers
LinkedIn Banner (1584×396)
Profile background banner
YouTube Thumbnail (1280×720)
Bold thumbnails with big readable text
YouTube Banner (2560×1440)
Channel art with the TV/desktop/mobile safe area
Open Graph Image (1200×630)
Link-preview images for websites and blogs
Profile Picture Maker
Square or round avatars from any photo
Line Break Formatter
Keep blank lines in Instagram and LinkedIn posts
11Media
Media tools
Inspect and trim audio, extract video frames, make GIFs.
Audio Inspector
Format, duration, sample rate, tags and waveform
OpenAudio Trimmer
Cut a section of audio and save it as WAV
OpenVideo Frame Extractor
Save frames at any time or interval as images
OpenWaveform Viewer
Render a waveform image for any audio file
Video Metadata
Duration, resolution and frame preview
Video Thumbnails
A grid of evenly spaced thumbnails from a video
Video to GIF
Turn a short clip into an animated GIF
GIF Frame Extractor
Split an animated GIF into individual frames
Audio Spectrogram
See frequencies over time; find the dominant pitch
Extract Audio from Video
Save a video’s soundtrack as WAV (trim and fade optional)
Change Audio Volume
Make audio louder or quieter, with fades
Audio Fade In / Out
Add smooth fades to a clip
Trim Video
Cut a clip out of a video and save it (re-encoded in real time)
Crop Video
Crop to 1:1, 9:16, 4:5 or 16:9
Compress Video
Smaller video by lowering resolution and bitrate
12Privacy
Your files are processed locally.
- No uploadsFiles are read by this tab and processed with browser APIs.
- No accountNothing to sign in to. No tracking of your files.
- No cloud AINo external processing services — ever.
- Works offlineOnce loaded, the tools keep working without a connection.
Privacy tools · 36
- Password GeneratorStrong random passwords with entropy estimate
- Text RedactorBlack out emails, phone numbers, cards and names
- Passphrase GeneratorMemorable multi-word passphrases
- Random String GeneratorRandom strings from any character set
- Secret Key Generator256-bit keys as hex, Base64 or Base64URL
- EXIF ViewerSee exactly what your photos reveal
- EXIF RemoverRemove location and camera data from photos
- Token InspectorCheck a JWT’s claims and expiry before using it