Browser-side tools
Most UVs Tool Hub utilities process files or text directly in your browser. For those tools, the selected file does not need to be uploaded to UVs Tool Hub merely to perform the requested operation.
Image Converter processing
The advanced Image Converter uses a hybrid workflow. HEIC/HEIF files may be decoded in the browser, while broader image-format conversion can use the UVs Tool Hub server because web browsers do not provide every image codec. Temporary converter files are used only to deliver the requested result and are cleaned automatically.
Browser AI and document tools
Background removal uses a browser-based AI model, and supported PDF/Word tools—including PDF to JPG / PNG, PDF to Word and Word to PDF—run in the browser without a paid document-conversion service. The AI runtime or model may be downloaded by the browser, but the selected image is processed on the device.
OCR PDF & Image
OCR PDF & Image processes the selected PDF pages or images in the browser. The OCR JavaScript runtime and the language-data files you select are downloaded from the Tesseract.js distribution network when required and may be cached by your browser. Those runtime files are not your document. The selected source document is not intentionally uploaded to UVs Tool Hub or to the OCR runtime host for recognition. Downloaded OCR outputs and editable text remain on your device unless you choose to share them.
Passport Photo Maker and face detection
Passport Photo Maker performs cropping, quality checks, output generation and print-sheet creation in the browser. When automatic face detection is needed, the browser may download a face-detection library/model from static content hosts; when background preparation is used, the browser may also download the background-removal runtime/model. The selected portrait is processed on the device for these operations and is not intentionally uploaded to UVs Tool Hub for face detection or background removal.
Passport Photo Maker can keep your photo, cutout and editor settings in this browser using IndexedDB. Recovery is on by default and can be turned off in the studio. A saved copy is eligible for recovery for 24 hours after its latest successful save. Expired copies are discarded when the studio next opens; a closed web page cannot run a deletion timer. Browser storage may also be cleared or evicted sooner. Use New photo to clear this browser’s current recovery project, or turn recovery off. Avoid leaving identity photos on shared devices.
The optional Save project file download contains your original photo, cutout and settings. It is not encrypted and does not expire after 24 hours. Keep it private and delete it when no longer needed. Opening a project file does not upload it to us. Downloaded digital and print photos are new rendered files and do not copy the source photo’s EXIF/GPS metadata.
Portrait-model files may be cached by the browser to reduce repeat downloads. These cached model files are not your photo. Face detection and background processing start only when requested. Feedback attachments are separate: a screenshot is uploaded only when you intentionally submit the site’s feedback form.
Feedback and problem reports
Every page includes a feedback form that can send a report to info@uvstoolhub.com. You may optionally provide a reply email and attach one PNG, JPG or WebP screenshot up to 2 MB. The screenshot and message are submitted to the UVs Tool Hub server only when you press Send feedback. The page URL and browser details are included only when you leave that option enabled. Do not submit passwords, account credentials, identity documents, payment details or confidential material.
Analytics and logs
Standard hosting and analytics systems may record technical information such as IP address, browser type, requested URL and timestamp for security, diagnostics and aggregate usage analysis. Analytics configuration should use the final production property and follow applicable consent requirements.
Contact
Privacy questions can be sent to info@uvstoolhub.com.
Photo Collage & Image Combiner
Selected image bytes are decoded and edited locally by this tool. Photos, layout settings and up to 30 undo edits remain in page memory. They are not uploaded by the tool or saved automatically to browser storage. Refreshing or closing the page loses unsaved work. Editable project downloads contain working photo pixels and editing settings; users can explicitly reopen those files locally. The tool does not transmit project contents. Clear all discards loaded photos and resets edits. Downloads are newly encoded raster images; the tool does not copy original camera/EXIF metadata. Existing site analytics and voluntary feedback are described separately.
Percentage & Discount Calculator
Numbers and imported batch text are processed locally by this calculator. Up to 10 calculations can be recalled from page memory; they are not saved automatically to browser storage or encoded in links. Downloaded reports include the inputs, results and calculation rules. The tool does not access financial accounts, determine tax obligations or upload imported text.
Age & Date Calculator
Dates and holiday lists are calculated in your browser and are not uploaded by this tool. Up to 10 recent calculations remain in page memory until you clear the history or leave the page; they are not saved to browser storage or put into share links. Downloaded reports contain entered dates and calculation rules. Calendar exports create a file on your device; they do not connect to or modify a calendar account.
Word Counter & Text Cleaner
Text, text files, selections and counts are processed in your browser. The tool does not upload the text or save it automatically. Clicking Save draft here stores one draft in this browser profile until you explicitly replace or delete it, or the browser clears storage. Anyone with access to the same browser profile may be able to load it. Use Delete saved draft to remove it; this leaves your current editor text unchanged. Undo history is limited to the current page session.
TXT files contain your text. Keyword CSV and JSON reports include words from it, including the longest word in JSON. The statistics TXT report contains counts and settings only. Download important work because private browsing or browser cleanup may remove saved drafts. Normal site analytics do not receive text through this tool.
Website review tool
For live website reviews, the public page address is sent to our server, which requests that page and its crawl instructions. The target receives our server’s IP address and crawler identification, not your browser cookies or uploaded photographs. The scanner does not save target HTML or reports. Operational rate-limit records use keyed address hashes and timestamps; expired counters are pruned on a subsequent request. Hosting access logs may still record normal request metadata. Do not submit private or signed links.
Saved-HTML mode reads the selected file in your browser without loading its referenced scripts or images. Downloaded reports may include the target URL and brief source excerpts. Reports are not uploaded automatically or published on our site.
PDF Redactor
PDF redaction happens in your browser. This tool does not send the selected PDF, search phrases, matched text or generated pages to the UVs server. It uses local site libraries and does not save the document in browser recovery storage. Closing or refreshing the editor clears its working session. Downloaded source and output files remain on your device until you delete them.
Every output page is rebuilt as an image after marked pixels have been overwritten. Original text layers, interactive annotations, attachments and original metadata are not copied. Visible information outside the selected areas remains; review the complete output before sharing. The process report excludes your filename and search terms.
Selected-page website reviews
Live Website Spam & SEO Risk Checker requests send the selected public page addresses to our own bounded PHP fetcher. Optional sampling checks up to five addresses individually; it is not a crawl of the entire domain. Saved HTML is parsed locally without running that page's scripts or loading its referenced assets. Exported reports can contain page addresses, evidence excerpts and source fingerprints; treat them appropriately.
PDF comparison and redaction marking plans
Compare PDF processes the selected documents locally. It does not upload or automatically save them. Comparison PDF/PNG reports contain source-page images and are not redacted documents. TXT, CSV and JSON reports include changed text only when you choose that option; report files are not encrypted. Keep all reports private. PDF Redactor can save a marking-plan JSON file with page coordinates, settings and a SHA-256 fingerprint of the original PDF. The plan contains no source PDF or search results, but its coordinates and fingerprint are not encrypted. Reopening a plan requires the exact original PDF, and all marks should be reviewed before applying them. Clearing either tool removes its active documents from that editing session; files you downloaded remain on your device.