HAR File Analyzer
Open HAR files locally and generate safe-share cURL, fetch, and bridge payloads fast.
Find tools
Use chips to jump between the key tools and task-based groups.
Key tools
Start with the local-first tools for sensitive file work and reusable outputs.
CSV Cleanroom
Validate, normalize, and export cleaned CSV plus issue and report artifacts.
Word Clipboard to Markdown
Convert Word into reusable Markdown locally with images and conversion reports.
PDF Image Compressor
Shrink image-heavy scanned PDFs locally with DPI, JPEG quality, and grayscale controls.
CutClean Batch
Batch-cut product shots with controlled local background removal.
Guides
Learn before you run with short, tool-specific guides for the five priority workflows.
Export a HAR
Get a HAR out of Chrome or Edge and check what it contains before you share it.
CSV import checklist
Clean partner feeds before import and know which export files to keep.
Word to Markdown pitfalls
Choose safer presets and exports when lists, tables, or images matter.
Scanned PDF tradeoffs
Decide when local scanned-PDF compression is worth flattening text and forms.
Cleaner cutouts
Set up simple-background product shots so CutClean Batch has a much easier job.
All tools
20 toolsBrowse the full directory by category. Every tool stays linked here for scanning, keyboard access, and crawlable discovery.
Text & Writing
Text Cleaner
Clean pasted text locally by repairing wrapped line breaks, extra spaces, HTML tags, and hidden characters.
Text Compare
Compare and merge text locally with 2-way and 3-way panes, chunk actions, conflict highlights, and collapse controls.
Word Clipboard to Markdown
Convert Word into reusable Markdown locally with images and conversion reports.
Documents & Files
PDF Sign
Fill, sign, and return PDFs locally with preflight checks, on-page form input, overlays, and download.
Batch File Renamer
Rename multiple files locally with deterministic numbering, Windows-safe validation, mapping CSV export, and folder-preserving ZIP download.
Image PDF Converter
Turn photos into one clean PDF, or save selected PDF pages as JPG or PNG locally in your browser.
PDF Image Compressor
Shrink image-heavy scanned PDFs locally with DPI, JPEG quality, and grayscale controls.
Subtitle Converter & Editor
Convert CSV, SRT, and VTT subtitle files locally, review cues, fix timing, and merge lines before export.
PDF Tools
Organize PDF pages locally with visual selection, reordering, rotation, extraction, and ZIP export.
Images & Media
PNG Compressor
Offline PNG compressor with queue, preview, ZIP, and folder save.
Image Compressor & Converter
Task-first local image workflow for JPG, PNG, WebP, and BMP input with preview and ZIP download.
Image Crop & Watermark
Crop images to common ratios, add text or logo watermarks in batch, inspect before/after output, and download files or ZIP locally.
CutClean Batch
Batch-cut product shots with controlled local background removal.
Data & Calculators
CSV Cleanroom
Validate, normalize, and export cleaned CSV plus issue and report artifacts.
Date Difference Calculator
Calculate days between two dates, including business days, weekend days, and exact calendar difference.
Unit Converter
Convert 8 categories with local-first single/batch conversion, precision controls, favorites, and shareable URLs.
Builders & Generators
Equation Code Builder
Create LaTeX-based equation snippets and export Markdown, HTML, standalone HTML, or MathML with live preview.
QR Code Generator
Build typed QR payloads, export PNG/SVG, and run local scan reliability checks in your browser.
Dev & Network
HAR File Analyzer
Open HAR files locally and generate safe-share cURL, fetch, and bridge payloads fast.
JSON Cleanroom
Repair malformed JSON, compare raw vs repaired output, and validate against JSON Schema locally.
Quick trust points
How it works and policies
Use the directory above to open a tool, then keep these pages close for product details, policies, and support.
How it works
Learn how UseKit is organized and what it is built for.
Privacy
Review browser-side processing and data handling details.
Terms
See the usage terms that apply across the site.
Contact
Reach out for support, policy questions, or requests.
Changelog
Track what changed recently across the product.
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