PanDev Tools

Tools that work without uploading.

Merge a PDF, preview a YouTube thumbnail, trim a song or shrink a photo. 80 free tools run right here in your browser, so your files stay on your device.

PDF

Merge, split, convert and edit PDFs.

Merge PDFCombine multiple PDFs into one file, in the order you choose.Popular Split PDFExtract page ranges into a new PDF, or split a document into single pages or equal chunks. Organize PagesReorder, rotate and delete PDF pages visually, then save the result. Rotate PDFRotate all pages (or just some) of a PDF by 90, 180 or 270 degrees. Images to PDFTurn JPG, PNG or WebP images into a single PDF with your choice of page size and margins. PDF to ImagesConvert each PDF page into a PNG or JPG image at the resolution you need. Compress PDFShrink PDF file size by re-compressing pages as JPEG, or with a lossless re-save. Watermark PDFStamp a text watermark on every page with custom size, color, opacity, angle and layout. Add Page NumbersNumber the pages of a PDF with your choice of position, format, starting number and size. Edit PDF MetadataView and edit a PDF’s title, author, subject, keywords, creator and producer. PDF to TextExtract all the text from a PDF, page by page, then copy it or save it as a .txt file. Sign PDFDraw or type your signature and place it anywhere on a PDF, no printing or scanning.

YouTube

Preview thumbnails & titles, grab assets, plan uploads.

Thumbnail & Title PreviewerSee exactly how your thumbnail and title look on YouTube home, search, up next, mobile and TV, next to competing videos.Popular Thumbnail DownloaderGrab every thumbnail size of any YouTube video or Short, from 1280×720 max-res down to the auto-generated frames. Title Length CheckerLive character count against the 100-character limit, truncation previews for desktop and mobile, and a quick title score. Tag GeneratorTurn a title or topic into keyword, long-tail and modifier tag ideas, pick the ones you want and stay under the 500-character limit. Description & Hashtag BuilderBuild a well-structured video description with timestamps, links, socials and hashtags, and see what shows above the fold. Chapters GeneratorCreate YouTube chapter timestamps and check them against YouTube’s rules: starts at 0:00, at least 3 chapters, each 10 seconds or longer. Embed Code GeneratorGenerate a YouTube iframe with start/end time, autoplay, mute, loop, privacy-enhanced mode and a responsive wrapper, with a live preview. Link & Timestamp BuilderExtract the video ID from any YouTube link and build short links, links that start at a timestamp, Shorts ↔ watch and playlist URLs. Channel Banner Safe-Area CheckerOverlay YouTube’s TV, desktop, tablet and mobile safe areas on your 2560×1440 channel banner and preview each crop. Earnings EstimatorEstimate rough daily, monthly and yearly YouTube ad revenue from your views and an RPM range for your niche.

Audio & Music

Cut, convert, record, tune and practice.

Audio CutterTrim MP3, WAV and other audio on a waveform: select a region, add fades and export the clip, or cut the middle out.Popular Audio ConverterConvert MP3, WAV, OGG, M4A, FLAC or WebM audio to MP3 or WAV, with optional mono downmix and resampling. Batch friendly. Volume Booster & NormalizerMake audio louder or quieter, or peak-normalize it to a target level, with a soft limiter that prevents clipping. Speed & Pitch ChangerSpeed audio up or slow it down with or without changing pitch, or transpose it by semitones. Reverse AudioPlay any audio file backwards and download the reversed version as MP3 or WAV. Audio JoinerCombine several audio files into one track in the order you choose, with an optional crossfade between them. Voice RecorderRecord your voice from the microphone with a live level meter, pause/resume, and save takes as WebM, WAV or MP3. MetronomePrecise online metronome with tap tempo, time signatures, accents, subdivisions and three click sounds. BPM Tap Tempo & DetectorTap along to find the tempo of any song, or upload a track and detect its BPM automatically. Guitar & Instrument TunerTune guitar, bass, ukulele or violin with your microphone: note name, cents needle and frequency in real time. Tone & Frequency GeneratorGenerate sine, square, sawtooth or triangle tones from 20 Hz to 20 kHz, or white, pink and brown noise. Export as audio. Virtual PianoPlay a two-octave piano with your mouse, touch or computer keyboard. Shape the synth sound, use sustain and record what you play. Audio Info & SpectrumInspect any audio file: duration, sample rate, channels, peak, RMS and loudness, plus a live spectrum analyzer and a spectrogram. Chord FinderPick a root and chord type to see its notes, guitar fingering diagrams and piano keys, then hear it played.

Image

Compress, resize, crop and convert images.

Image CompressorShrink JPG, PNG and WebP images in bulk with a quality slider and a live before/after comparison.Popular Image ResizerResize images by pixels or percentage, with social-media presets and stretch, pad or crop fitting. Image CropperCrop images with a draggable box and aspect presets, then rotate or flip before exporting. Image ConverterConvert PNG, JPG, WebP, BMP, GIF and SVG images to PNG, JPG or WebP in bulk. Color Picker from ImagePick exact colors from any image with a zoom loupe and extract a palette as HEX, RGB, HSL or CSS variables. Favicon GeneratorMake a complete favicon set from an image, letter or emoji: a real multi-size .ico, PNGs, web manifest and HTML tags. Image Filters & AdjustAdjust brightness, contrast, saturation and hue, or apply blur, B&W, sepia, vintage and vignette with a live preview. Add Text / Watermark to ImageStamp a text or logo watermark on one or many images, with position, opacity, size, rotation and tiling. Image to Base64Turn an image into a Base64 data URI with ready-to-paste CSS and <img> snippets, or decode Base64 back to an image. Meme / Caption MakerAdd classic bold top and bottom captions with an outline to any image and download the meme. Image Metadata Viewer & EXIF RemoverSee the hidden EXIF data in photos (camera, date, GPS location) and strip it before you share.

Video

Record screens, grab frames, make GIFs.

Screen RecorderRecord your screen, a window or a tab with microphone and system audio, then download the video. No install, no watermark.Popular Webcam RecorderRecord video from your camera and microphone, or snap photos, right in the browser. Video to GIFTurn a clip from any video into an animated GIF with your own start, end, frame rate and size. Video Frame GrabberStep through a video frame by frame and save any frame as a full-resolution PNG or JPG, or grab one every few seconds. Extract Audio from VideoPull the soundtrack out of an MP4, WebM or MOV video and save it as MP3 or WAV. Video TrimmerCut a video down to the part you want by choosing a start and end point, then download the clip. Video Info & Contact SheetSee a video's duration, resolution, aspect ratio and bitrate, and export a contact sheet of thumbnails.

Text

Count, convert, compare and clean text.

Word & Character CounterCount words, characters, sentences and reading time live, with keyword density and social media limits.Popular Case ConverterConvert text to UPPER, lower, Title, Sentence, camelCase, snake_case, kebab-case and more in one click. Text Diff / CompareCompare two texts and highlight every added, removed and changed line or word, side by side or inline. Remove Duplicates & Sort LinesRemove duplicate lines, sort alphabetically or naturally, shuffle, trim, number lines and add prefixes. Find & ReplaceFind and replace text with plain search or regular expressions, highlighted matches and a live preview. Lorem Ipsum GeneratorGenerate placeholder lorem ipsum paragraphs, sentences or words, as plain text or HTML. Markdown Editor & PreviewWrite Markdown with a live side-by-side preview, then export it as a .md or styled .html file. Text to SpeechRead any text aloud with your device’s voices, adjustable speed and pitch, and live word highlighting. Speech to TextDictate with your microphone and get a live transcript you can edit, copy or download. Fancy Text GeneratorTurn text into bold, italic, script, gothic, bubble and upside-down Unicode fonts for bios and posts. Slug GeneratorTurn titles into clean, SEO-friendly URL slugs, one per line, with accent transliteration and stopword removal.

Developer

Format, encode, hash and generate.

JSON Formatter & ValidatorFormat, minify and validate JSON with exact error locations, sorted keys and a collapsible tree view.Popular Base64 Encode / DecodeEncode text or files to Base64 and decode it back, with full UTF-8 support and a URL-safe option. URL Encode / Decode & ParserPercent-encode or decode text, and break any URL into parts with an editable query-parameter table. Hash GeneratorGenerate MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes of text or files and verify checksums. UUID & Random ID GeneratorGenerate UUID v4 and time-ordered v7 in bulk, plus nanoid-style random strings with custom alphabets. Password GeneratorCreate strong random passwords or memorable passphrases with an entropy meter, using secure randomness. QR Code GeneratorCreate QR codes for links, Wi‑Fi, contacts, email, SMS and more, with colors and a logo; download PNG or SVG. QR Code ScannerScan QR codes with your camera or from an image or screenshot, right in the browser. Color Converter & Contrast CheckerConvert HEX, RGB, HSL and OKLCH colors, check WCAG contrast between two colors and build shade scales. Unix Timestamp ConverterConvert Unix epoch timestamps to dates and back, in local time and UTC, with seconds/milliseconds autodetect. Regex TesterTest JavaScript regular expressions live with highlighted matches, capture groups and handy snippets. JWT DecoderDecode JSON Web Tokens to inspect the header, payload and expiry. Nothing is sent anywhere. CSS Gradient GeneratorDesign linear, radial and conic CSS gradients with multiple color stops and copy the CSS. Number Base ConverterConvert numbers between binary, octal, decimal, hex and any base from 2 to 36, with big-number support. Code Minifier & BeautifierMinify or beautify HTML, CSS, JSON and JavaScript right in your browser and see how many bytes you save.

Stays on your device

Files are opened and processed by your browser. There is no server to upload them to.

No waiting in line

Your computer does the work, so there are no upload bars, queues or file-size caps.

Free, with no account

No sign-up, watermarks or daily limits. Open a tool and use it.

Frequently asked questions

Are these tools really free?

Yes. All 80 tools are free to use with no account, no daily limits and no watermarks on your files.

Do my files get uploaded anywhere?

No. Every tool opens and processes files inside your browser using JavaScript and built-in web APIs. Your PDFs, photos, audio and videos never leave your device, so there is nothing for a server to store or leak.

Do the tools work on a phone?

Most tools work on phones and tablets in Chrome, Safari and Firefox. A few need desktop browser features, such as the screen recorder, and say so on their page.

Is there a file size limit?

There is no upload limit because nothing is uploaded. Very large files are limited only by your device memory, so a laptop handles bigger PDFs and videos than an older phone.