Free online tools that respect your privacy.

CSV Cleaner

Remove duplicates, empty rows and messy formatting from your CSV files in seconds. Free, no sign-up.

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Audio Cleaner

Trim silence, normalize loudness and add fades to podcasts and voice recordings — right in your browser.

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Image SEO Kit

Batch-compress product photos, convert to WebP, and auto-generate SEO filenames and alt text.

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JSON Formatter

Format, validate and minify JSON with syntax highlighting and precise error locations. Free, no limits.

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PDF Merge & Split

Combine PDFs into one or extract page ranges. Unlike iLovePDF, your files never leave your browser.

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Photo Metadata Scrubber

Reveal hidden EXIF data in your photos — GPS location, camera model — then wipe it clean in one click.

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ID Photo Maker

Crop 2×2 in or 35×45 mm ID photos at home and download a 4×6 in print sheet. Free, no sign-up.

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Invoice Generator

Create a professional invoice PDF right in your browser — no sign-up, no watermark. Data never leaves your device.

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Subtitle Sync Fixer

Fix .srt subtitles that run seconds too early or too late — shift or rescale the whole timeline in one click.

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Carousel Splitter

Slice one wide image into a seamless swipeable Instagram carousel, numbered in upload order.

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Screenshot Mockup

Wrap a screenshot in a browser frame on a gradient background and download a polished PNG — no design skills needed.

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OG Image Generator

Design 1200×630 social share cards with your title and brand colors, plus copy-paste og:image meta tags.

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Batch Watermark

Stamp your text or logo on up to 20 product photos at once — right in your browser, nothing uploaded.

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HEIC to JPG

Convert iPhone .heic photos to JPG in bulk. Decoded on your device — your photos never leave your browser.

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Favicon Generator

Turn one logo into a complete favicon pack: ICO, PNGs, apple-touch-icon, PWA manifest and copy-paste HTML.

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Frame Extractor

Pull evenly-spaced frames from any video and build a timestamped storyboard contact sheet — right in your browser.

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Image to Text (OCR)

Extract text from screenshots and scans with on-device OCR. Your images never leave your browser.

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Background Remover

Remove photo backgrounds with on-device AI — a free, private remove.bg alternative. No upload, no sign-up.

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UTM Builder

Tag campaign links in bulk from a CSV, catch naming mistakes that pollute GA4, and audit old links.

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Bulk QR Generator

Paste a list and get hundreds of QR codes in one ZIP — for menus, table cards and product labels.

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Email DNS Checker

Why do your invoices land in spam? Check SPF, DKIM and DMARC with plain-language fix steps.

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GIF to MP4

Convert animated GIFs to real MP4 (H.264) videos for Instagram Reels, TikTok and YouTube — encoded locally.

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Audiogram Maker

Turn podcast audio into captioned waveform videos with true MP4 sound. Free, no sign-up, no watermark.

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Review Analyzer

Paste 1–2 star reviews and see exactly why buyers complain — shipping, quality, description mismatch and more.

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Screenshot Redactor

Black out, pixelate or blur sensitive parts of a screenshot before sharing — solid blackout is provably safe.

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JSON Diff

Compare two JSON documents and see every added, removed and changed value — without uploading customer data.

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Payment Reminder

Chasing an unpaid invoice? Get the right reminder email — gentle nudge, firm reminder or final notice — in seconds.

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PDF Metadata Scrubber

Reveal hidden author names, timestamps, XMP data and scripts in your PDF — then wipe them clean in one click.

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PDF Password Protector

Lock any PDF with a password. Real AES-256 encryption, done entirely in your browser — nothing is uploaded.

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PDF to PNG

Export PDF pages as crisp PNG images for slides, social media and docs — pick pages, choose quality, download.

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JWT Decoder

Decode a token's header, payload and expiry locally — stop pasting live session tokens into random decoder sites.

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Cron Builder

Build a cron schedule field by field, or paste one and read it in plain English with the next 5 run times.

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Contrast Checker

Check any text/background pair for WCAG AA and AAA — and get the closest color that passes when it fails.

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Etsy Listing Checker

Check a listing before you publish: 140-character title, all 13 tags, repeated words and trademarked names — with a fix list.

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Podcast Chapters

Type your episode segments once and get Podcasting 2.0 chapters JSON, YouTube timestamps and plain chapters.txt.

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Subtitle Converter

Convert SRT to WebVTT for HTML5 players, or VTT back to SRT — with a validation report for bad timings and too-fast lines.

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Regex Tester

Test a JavaScript regex against real sample text — matches, capture groups and a replace preview, with no upload.

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CSV to JSON Converter

Convert CSV to JSON or JSON back to CSV in your browser — delimiter auto-detect, and ZIP codes stay strings.

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AI Text Cleaner

Strip invisible characters from text copied from AI chats: zero-width spaces, special spaces, bidi marks — with a per-character report.

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Base64 Encoder

Encode text or a file to Base64 and decode it back — UTF-8 correct, URL-safe option, clear errors for broken input.

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Unix Time Converter

Convert a Unix timestamp (seconds or milliseconds) to ISO, UTC, local and relative time — or a date back to a timestamp.

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Image Compressor

Compress and resize JPG, PNG and WebP images in bulk — quality slider, max dimension, WebP conversion, ZIP download. Free, no sign-up.

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CSV Splitter

Split a large CSV into smaller files by row count or by column value, with the header repeated in every part. Free, no sign-up.

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Time Zone Meeting Planner

Find a meeting time inside working hours for everyone across time zones, convert any time, and download a calendar file. Free, no sign-up.

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Bulk Text Cleaner

Clean a messy list in one pass: dedupe, de-blank, sort, change case — or extract just the emails or URLs.

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Chat Analyzer

Drop in a WhatsApp or Instagram chat export and see who talks most, busiest hours and reply times — counted locally, nothing uploaded.

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Log Redactor

Mask emails, IPs, API keys, tokens and passwords in a log before pasting it into an AI chat — in your browser, nothing uploaded.

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Folder Compare

Compare two folders: added, removed, changed, identical and moved files — by name and size, or by SHA-256 content hash.

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Text Diff Checker

Compare two versions of a text side by side — added, removed and changed lines with word-level highlights, plus a unified diff patch.

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Markdown to HTML Converter

Convert Markdown to clean HTML with a live preview. Copy the HTML, copy formatted text for Docs and email, or download a standalone page.

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ICS Event Generator

Create a calendar event and download a standard .ics file for Google, Outlook and Apple Calendar — time zones, repeats and reminders included.

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PDF to Text Extractor

Extract the selectable text from any PDF in your browser — page markers and line breaks preserved. Copy it or download a .txt file, nothing uploaded.

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Word Counter & Readability Analyzer

Count words, characters and sentences, check Flesch readability and keyword density as you type. Your text never leaves your browser.

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Business Days Calculator

Count business days between two dates or add working days to a date — custom workweeks, US federal holidays and your own holiday list included.

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Social Image Resizer

Resize any image to the exact dimensions for Instagram, TikTok, YouTube, LinkedIn, Facebook, X, Pinterest, Etsy and Amazon — in your browser, no upload.

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Mock Data Generator

Generate realistic fake users, products and orders as JSON, CSV or SQL. Seeded and reproducible — the same seed gives the same data every time.

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YAML ↔ JSON Converter

Convert YAML to JSON and back in your browser — Kubernetes, GitHub Actions and Docker Compose configs stay private. Multi-document YAML supported.

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Env File Checker

Compare a .env file against its .env.example template — missing, empty, placeholder and extra keys with typo suggestions. Values stay masked; nothing is uploaded.

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Recipe Scaler

Scale any recipe by servings, multiplier or pan size — kitchen-friendly fractions, spoon tidying and metric equivalents. Your recipe never leaves your browser.

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Video Bitrate Calculator

Work out file size, required bitrate or duration before you export — YouTube presets, upload-time estimates and a ready-to-copy ffmpeg command included.

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PDF Compressor

Make any PDF smaller in your browser: a tidy re-save that keeps text selectable, or image compression for the smallest files. Your file never leaves your device.

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Image to PDF Converter

Combine JPG, PNG and WebP images into one PDF in your browser — JPEGs and PNGs embedded losslessly, pages in the order you choose.

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QR Code Scanner

Decode the QR code in a screenshot or photo without your phone — see where it points before you open it. Nothing is uploaded.

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Email Header Analyzer

Paste email headers to see SPF, DKIM and DMARC verdicts, domain alignment and the server-by-server route. Headers never leave your browser.

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Subscription Finder

Find every recurring charge hiding in your bank statement — monthly and yearly totals, CSV report. Your statement never leaves your browser.

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JPEG to SVG Converter

Turn a JPG, PNG or WebP into a scalable SVG vector in your browser — best for logos and flat-colour graphics. Nothing is uploaded.

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Subject Line Tester

Score email subject lines for spam-trigger words, length and tone, compare up to 5 variants and preview them in phone and desktop inboxes.

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Paste Guard

Check text for API keys, passwords and other secrets before you paste it into ChatGPT, Claude or Slack — then copy a safe, masked version.

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Photo Renamer

Rename photos by the date they were taken, read from EXIF — merge shots from several cameras into one sortable sequence and download as a ZIP.

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Podcast RSS Generator

Build a valid podcast RSS feed with iTunes tags — no hosting platform needed. Fill in your show and episodes, download feed.xml and submit it.

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PDF Page Organizer

Reorder, rotate and delete PDF pages visually — drag thumbnails into order, straighten sideways scans, then download the rebuilt PDF. Nothing is uploaded.

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Podcast RSS Validator

Check your podcast feed against Apple Podcasts requirements before you submit it — works on feeds that are not hosted anywhere yet. Nothing is uploaded.

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Social Card Preview

See how your link card looks on Facebook, X, LinkedIn, Slack and WhatsApp — paste your Open Graph tags and get a tag audit with fixed tags to copy.

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Sign PDF

Sign a contract or form without printing and scanning — draw, type or upload your signature, click where it goes, and download the signed PDF. Free and unlimited.

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PDF Watermark

Stamp DRAFT, CONFIDENTIAL or your own text across every page before you share a document — diagonal or tiled, with adjustable opacity. Nothing is uploaded.

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PDF Page Numbers

Add page numbers to any PDF — three formats, six positions, custom start number. Real vector text that stays selectable and searchable. Nothing is uploaded.

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Image DPI Changer

Set a JPG or PNG to 300 DPI in seconds — a form rejects your photo for being 72 DPI? Fix the label, not the picture. Pixels, quality and file size stay exactly the same. Nothing is uploaded.

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Video to MP3

Keep the sound, drop the picture — extract MP3 or WAV from MP4, MOV, WebM or MKV videos, with an optional trim range and batch ZIP download. Nothing is uploaded.

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PDF Redactor

Black out names, amounts and secrets for real — drag a box or search for text, and redacted pages are flattened to images so the words are truly gone. Nothing is uploaded.

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Image to Exact KB

Shrink a photo to exactly 20, 50, 100 or 200 KB — guaranteed under your visa, exam or job portal's limit. No more guessing with quality sliders. Nothing is uploaded.

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Split PDF by Size

Cut a PDF into parts that each fit your portal's upload limit — 1 MB, 2 MB or 5 MB, guaranteed. No more guessing how many pages make 2 MB. Nothing is uploaded.

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ID Card to PDF

Put the front and back of your ID card on one A4 page at real card size — ready to print or upload for banks, landlords and HR. Nothing is uploaded.

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