100% Client-Side In-Browser Computation

Useful Browser Tools.
Zero Server Uploads.

High-performance audio, video, document, and developer utilities that run completely on your device. Fast, private, and unlimited.

Popular

ScreenTake

Private browser screen recording

Record screen, camera, and microphone directly in your browser. No downloads, no server uploads, export to WebM/MP4 instantly.

Zero UploadWebCodecsHD / 4K
screentake.illtools.comLaunch
Popular

ClipFit

Ultra-fast media compression & conversion

Compress large video and audio files to target file sizes for Discord, email, or Slack without uploading your media to any server.

Client-SideFFmpeg WASMBatch Mode
clipfit.illtools.comLaunch
Popular

CamCheck

Camera diagnostics & stream tester

Test webcams, inspect real resolutions, framerates, color balance, and verify video streams before joining important calls.

Hardware TestZero LogRealtime FPS
camcheck.illtools.comLaunch
Popular

MicCheck

Microphone test & volume monitor

Check your microphone input levels, listen back to mic tests, measure signal-to-noise ratio, and detect background hum.

WebAudioLevel MeterLoopback Test
miccheck.illtools.comLaunch
Popular

ImageKit

Batch image processing & conversion

Resize, crop, convert (WebP, PNG, JPEG, AVIF), and optimize batches of images locally in memory with maximum speed.

Batch ProcessingLocal OnlyWebP / AVIF
imagekit.illtools.comLaunch
Popular

PDFDesk

Private PDF page toolkit

Split, merge, reorder, rotate, and extract pages from confidential PDF documents without sending sensitive contracts to the cloud.

100% ConfidentialZero CloudPDF-Lib
pdfdesk.illtools.comLaunch

CSVBench

Clean, filter & diff tabular datasets

Inspect massive CSV and TSV files, clean bad rows, deduplicate columns, compare tables, and export clean data securely.

Large DatasetsDiff ViewerData Privacy
csvbench.illtools.comLaunch

AudioCut

Precision waveform audio trimmer

Trim, splice, fade, and export audio clips with exact millisecond waveforms entirely within your web browser.

Waveform ZoomFade In/OutLossless
audiocut.illtools.comLaunch

ShotPolish

Screenshot beautifier & annotation

Turn raw screenshots into stunning showcase graphics with beautiful gradients, window mockups, blur redactions, and callouts.

MockupsGradient CanvasRedact Tool
shotpolish.illtools.comLaunch

DocScan

Document perspective warp & scan to PDF

Turn camera snapshots of receipts and paper documents into crisp, perspective-corrected black & white PDFs.

Auto Edge DetectContrast BoostMulti-Page PDF
docscan.illtools.comLaunch

TextLens

In-browser OCR text extraction

Extract copyable text from scanned documents, screenshots, and images without uploading personal documents to third-party OCR APIs.

Tesseract WASMMulti-LanguageOn-Device
textlens.illtools.comLaunch

DeviceCheck

Interactive gamepad, keyboard & mouse tester

Verify key rollover, detect ghosting, check mouse polling rate, and test gamepad sticks and buttons in real time.

Input EventsGamepad APIPolling Rate
devicecheck.illtools.comLaunch

DevDesk

Private developer transformations

Format JSON, decode JWT tokens, base64 encode/decode, generate UUIDs, and parse regex without leaking production keys or tokens.

No TelemetryJSON/JWT/RegexZero Leak
devdesk.illtools.comLaunch

CaptionLocal

On-device speech-to-text subtitle generator

Generate accurate SRT and VTT subtitles from video or audio files using local in-browser Whisper AI models.

Local Whisper AISRT / VTTDesktop Optimized
captionlocal.illtools.comLaunch

BackgroundCut

On-device image background removal

Remove backgrounds from portraits, products, and photos using client-side AI segmentation models.

Local AI ModelTransparent PNGHigh Precision
backgroundcut.illtools.comLaunch

Privacy by Architecture, Not Just Promises

Most online converters and editors secretly upload your personal videos, contracts, and photos to cloud servers. illtools operates differently:

Using modern WebCodecs, WebAssembly (WASM), and the Web Audio API, every operation executes locally in your browser memory.

Zero Cloud Uploads: Files never leave your local machine or touch remote servers.
Uncapped Speed: Processing speed depends on your CPU/GPU, not internet bandwidth.
No File Size Restrictions: Compress or edit large files without arbitrary cloud paywalls.