PDF
Merge PDF
Combine multiple PDFs into one.
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181+ free online tools
The tools you need.
Nothing you don’t.
ToolBubble gives you fast, private tools for documents, images, media and everyday work.
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Free to use
Every tool, with no hidden fees
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Editors
Edit documents, photos and video in your browser
PDF, Word and Excel files open in seconds, and photos and videos are edited right on your device, with nothing to install. Sign in and your work is kept in your files.
PDF EditorPDF
Read, annotate and sign PDFs. Add text, highlight, draw, and rotate, reorder or delete pages.
Open PDF EditorWord EditorDOCX · DOC
Open and write Word documents with headings, lists, tables and images, then download a real .docx.
Open Word EditorExcel EditorXLSX · XLS · CSV
Work in spreadsheets with live formulas, multiple sheets, sorting and copy-paste with Excel.
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Popular Tools
Quick access to the tools people use most
PDF
Split PDF
Split PDF into pages or ranges.
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PDF
Compress PDF
Shrink PDF file size instantly.
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PDF
PDF Editor
View, annotate and sign PDFs.
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Image
Photo Editor
Crop, adjust, filter and annotate photos.
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Image
Resize Image
Resize images to exact dimensions.
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Image
Compress Image
Compress images, reduce file size.
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Text
Word Counter
Count words, characters & reading time.
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7 tools
PDF Tools
Merge, split, compress, rotate, and convert PDF files — 100% free and private. All PDF tools run in your browser with no file uploads and no account required.
PDF
Merge PDF
Combine multiple PDFs into one.
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PDF
Split PDF
Split PDF into pages or ranges.
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PDF
Compress PDF
Shrink PDF file size instantly.
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PDF
PDF to Images
Convert PDF pages to JPG or PNG.
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PDF
Rotate PDF
Rotate PDF pages to any angle.
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PDF
PDF Editor
View, annotate and sign PDFs.
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PDF
Image to PDF
Convert images into a PDF file.
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23 tools
Image Tools
Resize, compress, crop, convert, and edit images in any format — all free, all in your browser. Supports JPG, PNG, WebP, GIF, HEIC, SVG, BMP, TIFF, AVIF, and more.
Image
Photo Editor
Crop, adjust, filter and annotate photos.
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Image
Resize Image
Resize images to exact dimensions.
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Image
Compress Image
Compress images, reduce file size.
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Image
Convert Image Format
Convert between JPG, PNG, WebP.
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Image
Crop Image
Crop images to any size or ratio.
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Image
Grayscale Image
Convert images to black & white.
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Image
Flip Image
Flip images horizontally or vertically.
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Image
Add Watermark
Add custom text watermark to images.
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9 tools
Text Tools
Word counter, case converter, Lorem Ipsum generator, text diff checker, slug generator, and more — free text tools that work instantly in your browser with no data sent anywhere.
Text
Word Counter
Count words, characters & reading time.
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Text
Case Converter
Convert text to any case format.
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Text
Lorem Ipsum Generator
Generate Lorem Ipsum placeholder text.
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Text
Text Diff Checker
Compare two texts and highlight differences.
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Text
Remove Duplicate Lines
Remove duplicate lines from text.
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Text
Reverse Text
Reverse text by character, word or line.
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Text
Slug Generator
Convert titles to URL-friendly slugs.
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Text
HTML Entity Encoder
Encode and decode HTML entities.
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14 tools
Developer Tools
JSON formatter, Base64 encoder/decoder, URL encoder, color converter, regex tester, hash generator, QR code generator, and more — free developer tools that run entirely in your browser.
Developer
JSON Formatter & Validator
Format, validate and minify JSON.
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Developer
Base64 Encoder / Decoder
Encode and decode Base64 strings.
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Developer
URL Encoder / Decoder
Encode and decode URLs and query strings.
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Developer
Color Converter
Convert HEX, RGB, and HSL colors.
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Developer
HTML Formatter
Beautify or minify HTML code.
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Developer
CSS Minifier
Minify or beautify CSS code.
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Developer
Regex Tester
Test regex patterns with live highlighting.
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Developer
Hash Generator
Generate SHA-1, SHA-256, SHA-512 hashes.
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15 tools
AI Tools
AI-powered writing, coding, and productivity tools — summarizer, grammar fixer, email writer, SQL generator, resume builder, and more. Powered by Claude AI. Free, no signup.
AI
AI Text Summarizer
Summarize any text with AI.
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AI
AI Grammar Fixer
Fix grammar and spelling with AI.
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AI
AI Email Writer
Write professional emails with AI.
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AI
AI Code Explainer
Explain code in plain English.
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AI
AI SQL Generator
Generate SQL from plain English.
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AI
AI Regex Generator
Generate regex from plain English.
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AI
AI Resume Builder
Build a professional resume with AI.
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AI
AI Cover Letter Generator
Write cover letters with AI.
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29 tools
Video Tools
Compress, trim, merge, convert, and edit videos directly in your browser using FFmpeg WebAssembly. Supports MP4, MOV, AVI, MKV, WebM, and more. No upload, no account.
Video
Video Editor
Trim, combine and caption videos on a timeline.
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Video
Video Compressor
Compress video files in browser.
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Video
Video to GIF
Convert video clips to animated GIF.
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Video
GIF to MP4
Convert GIF to MP4 video.
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Video
Trim Video
Trim videos to exact start/end time.
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Video
Merge Videos
Combine multiple videos into one.
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Video
Change Video Speed
Speed up or slow down videos.
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Video
Video to Audio
Extract audio from video files.
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14 tools
Audio Tools
Convert, trim, compress, record, merge, and speed-change audio files — all in your browser. Supports MP3, WAV, OGG, FLAC, AAC, WMA, AIFF, and more. No uploads, no account.
Audio
Audio Converter
Convert audio between formats.
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Audio
MP3 Compressor
Reduce MP3 file size.
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Audio
Voice Recorder
Record voice from microphone.
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Audio
Audio Trimmer
Trim audio files to exact length.
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Audio
Change Audio Speed
Speed up or slow down audio.
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Audio
Audio Joiner
Merge multiple audio files.
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Audio
Remove Background Noise
Remove noise from audio recordings.
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Audio
Text to Speech
Convert text to audio speech.
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10 tools
Security Tools
Generate strong passwords, check password strength, create bcrypt and HMAC hashes, generate secure tokens, and create test data — all in your browser with zero server contact.
Security
Password Generator
Generate secure random passwords.
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Security
Password Strength Checker
Check password strength.
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Security
Bcrypt Generator
Generate and verify bcrypt hashes.
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Security
MD5 Generator
Generate MD5 hash from text.
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Security
HMAC Generator
Generate HMAC-SHA256 signatures.
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Security
Random Token Generator
Generate secure random tokens.
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Security
Test Card Numbers
Test card numbers for developers.
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Security
Fake Address Generator
Generate fake addresses for testing.
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10 tools
SEO & Web Tools
Generate sitemaps, robots.txt, meta tags, check website speed, trace redirects, verify SSL certificates, preview Open Graph cards, and more. Free SEO tools for webmasters.
SEO
Sitemap Generator
Generate XML sitemaps from URLs.
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SEO
Robots.txt Generator
Generate robots.txt files.
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SEO
Open Graph Preview
Preview social share cards.
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SEO
Meta Tag Generator
Generate complete SEO meta tags.
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SEO
Keyword Density Checker
Check keyword density in text.
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SEO
Broken Link Checker
Find broken links from a URL list.
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SEO
Website Screenshot Tool
Capture website screenshots.
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SEO
Website Speed Checker
Check website PageSpeed scores.
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10 tools
Utility Tools
Unit converter, currency converter with live rates, BMI calculator, loan EMI calculator, age calculator, percentage calculator, countdown timer, and more free utility tools.
Utility
Unit Converter
Convert any unit instantly.
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Utility
Currency Converter
Convert currencies with live rates.
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Utility
Age Calculator
Calculate exact age from birth date.
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Utility
BMI Calculator
Calculate BMI from height and weight.
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Utility
Percentage Calculator
Calculate percentages in multiple ways.
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Utility
Loan EMI Calculator
Calculate loan EMI and repayments.
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Utility
Random Number Generator
Generate random numbers in any range.
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Utility
Dice Roller
Roll D4 to D100 dice online.
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13 tools
File Tools
Convert between CSV, JSON, XML, and Excel formats. View and remove EXIF metadata from photos. Calculate file checksums. Find duplicate files. All file tools run in your browser.
File
CSV to JSON
Convert CSV files to JSON.
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File
JSON to CSV
Convert JSON to CSV format.
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File
Excel to CSV
Convert Excel files to CSV.
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File
CSV Cleaner
Clean and fix messy CSV files.
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File
File Checksum Calculator
Calculate file checksums.
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File
EXIF Metadata Viewer
View EXIF metadata from images.
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File
EXIF Metadata Remover
Strip EXIF metadata from images.
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File
Duplicate File Finder
Find duplicate files by checksum.
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14 tools
Document
Convert between PDF, Word (DOCX), TXT, HTML, RTF, ODT, Excel, and Apple Pages formats — all free, all in your browser. No file uploads, no Microsoft Office required.
Document
PDF to TXT
Extract text content from PDFs.
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Document
PDF to Word (DOCX)
Convert PDF to editable Word DOCX.
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Document
Word Editor
Open and edit DOCX and DOC files.
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Document
Excel Editor
Open and edit XLSX, XLS and CSV.
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Document
Word to PDF (DOCX)
Convert Word DOCX files to PDF.
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Document
DOCX to TXT
Extract plain text from DOCX files.
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Document
TXT to PDF
Convert TXT files to PDF.
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Document
PDF to HTML
Convert PDF documents to HTML.
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7 tools
eBook
Convert between PDF, EPUB, MOBI, DOCX, and AZW3 ebook formats for Kindle, Kobo, Apple Books, and any e-reader. Free ebook converters with no signup and no upload.
eBook
PDF to EPUB
Convert PDF to EPUB ebook format.
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eBook
EPUB to PDF
Convert EPUB ebooks to PDF.
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eBook
EPUB to DOCX
Convert EPUB ebooks to Word DOCX.
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eBook
EPUB to MOBI
Convert EPUB ebooks to Kindle MOBI.
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eBook
MOBI to EPUB
Convert Kindle MOBI to EPUB.
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eBook
AZW3 to EPUB
Convert Amazon AZW3 to EPUB.
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eBook
PDF to MOBI
Convert PDF files to Kindle MOBI.
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5 tools
Archive
Create ZIP archives, extract ZIP files, convert TAR.GZ to ZIP, convert ZIP to 7Z, and convert RAR to ZIP — all in your browser without uploading files to any server.
10 tools
Design
Convert SVG, PSD, AI, EPS, DWG, and DXF design files. Convert between TTF, OTF, WOFF, and WOFF2 font formats. Free design converters that run entirely in your browser.
Design
SVG to PDF
Convert SVG vectors to PDF.
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Design
PSD to PNG
Convert Photoshop PSD to PNG.
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Design
PSD to JPG
Convert Photoshop PSD to JPG.
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Design
Font Converter
Convert TTF, OTF, WOFF font files.
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Design
EPS to PNG
Convert EPS vector files to PNG.
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Design
DWG to PDF
Convert AutoCAD DWG files to PDF.
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Design
DXF to PDF
Convert AutoCAD DXF files to PDF.
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Design
AI to SVG
Convert Adobe Illustrator AI to SVG.
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All tools. Always free.
No account needed. No watermarks. No limits. Just tools that work.
Browse all toolsWhat is ToolBubble?
ToolBubble (often searched as Tool Bubble) is a free collection of 181+ online tools that run in your web browser. Merge, split and compress PDFs; resize, crop and convert images; trim and convert video and audio; format JSON, generate passwords and QR codes; and write faster with AI tools. There is nothing to install and no account to create.
Most tools process your files locally with JavaScript and WebAssembly, so your documents and photos stay on your device. That makes ToolBubble a private, free alternative to upload-based converters.
Free tools by category
Frequently asked questions
What is ToolBubble?
ToolBubble (also written Tool Bubble) is a free website with 181+ online tools for PDFs, images, video, audio, text, AI writing, developers, SEO and file conversion. Every tool works in your web browser with no signup.
Is ToolBubble free?
Yes. Every ToolBubble tool is free with no watermarks and no usage limits. Optional paid plans only add cloud storage for files you choose to save.
Is it ToolBubble or Tool Bubble?
Both names refer to the same site, toolbubble.com. The official spelling is ToolBubble, written as one word.
Are my files uploaded when I use ToolBubble?
No. PDF, image, video, audio and file tools process files locally in your browser, so the files never leave your device. Only AI tools send the text you type to generate a result.
Do I need to install an app or create an account?
No. ToolBubble runs in any modern browser on Windows, macOS, Linux, Android and iOS. An account is optional and only needed to save files or sync pinned tools.
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Tell us what you’re trying to do. Many ToolBubble tools started as a request from someone like you.
6 tools
Social Media Tools
Download YouTube thumbnails, generate Instagram captions, create TikTok hashtags, count tweet characters, generate WhatsApp links, and resize images for every social platform.
YouTube Thumbnail Downloader
Download YouTube video thumbnails.
Instagram Caption Generator
Generate Instagram captions with AI.
TikTok Hashtag Generator
Generate TikTok hashtags.
Twitter Character Counter
Count tweet characters in real time.
WhatsApp Link Generator
Create WhatsApp click-to-chat links.
Social Media Image Resizer
Resize images for all social platforms.