Text Keyword Highlighting Tool

Batch highlight custom keywords and types, with support for packaging and downloading multiple files

Browser execution mode: Your data is processed in your browser and is not uploaded to the server.

Speed and Stability: Processing speed depends on your device and browser. For large batch work, the desktop version may be more stable.

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If the online tool fails to load or run, try the desktop tool.https://tools.yikeaigc.com/

Tool Usage

Return to old version

' ].join(''); } function uniqueOutputName(originalName, used) { var safeName = sanitizeFileName(originalName || 'highlight-result.txt'); var dotIndex = safeName.lastIndexOf('.'); var base = dotIndex > 0 ? safeName.slice(0, dotIndex) : safeName; var output = base + '.html'; var index = 1; while (used[output.toLowerCase()]) { output = base + '-' + index + '.html'; index += 1; } used[output.toLowerCase()] = true; return output; } function sanitizeFileName(name) { return String(name) .replace(/[\\/:*?"<>|]+/g, '_') .replace(/\s+/g, ' ') .trim() || 'highlight-result'; } function copyResult() { if (!state.lastSingleHtml) { setStatus('暂无可复制的HTML结果。', 'error'); return; } if (navigator.clipboard && navigator.clipboard.writeText) { navigator.clipboard.writeText(state.lastSingleHtml).then(function () { setStatus('结果HTML已复制。', 'ok'); }).catch(function () { fallbackCopy(state.lastSingleHtml); }); } else { fallbackCopy(state.lastSingleHtml); } } function fallbackCopy(text) { var textarea = document.createElement('textarea'); textarea.value = text; textarea.style.position = 'fixed'; textarea.style.left = '-9999px'; document.body.appendChild(textarea); textarea.select(); try { document.execCommand('copy'); setStatus('结果HTML已复制。', 'ok'); } catch (err) { setStatus('复制失败，请手动选择结果内容。', 'error'); } document.body.removeChild(textarea); } function downloadSingleHtml() { if (!state.lastSingleHtml) { setStatus('暂无可下载的HTML结果。', 'error'); return; } downloadBlob(new Blob([state.lastSingleHtml], { type: 'text/html;charset=utf-8' }), 'text-highlight-result.html'); } function downloadZip() { if (!state.lastZipBlob) { setStatus('暂无可下载的ZIP结果。', 'error'); return; } downloadBlob(state.lastZipBlob, 'text-highlight-results.zip'); } function downloadBlob(blob, filename) { var url = URL.createObjectURL(blob); var a = document.createElement('a'); a.href = url; a.download = filename; document.body.appendChild(a); a.click(); document.body.removeChild(a); setTimeout(function () { URL.revokeObjectURL(url); }, 1500); } function saveSettings() { var options = collectOptions(); var data = { custom: options.custom, types: options.types, caseSensitive: options.caseSensitive, wholeWord: options.wholeWord, regexMode: options.regexMode, allowOverlap: options.allowOverlap, style: options.style }; try { localStorage.setItem(storageKey, JSON.stringify(data)); els.settingStatus.textContent = '设置已保存。'; setStatus('设置已保存，下次打开会自动恢复。', 'ok'); } catch (err) { els.settingStatus.textContent = '保存失败：当前环境不允许写入本地设置。'; setStatus('保存失败：当前环境不允许写入本地设置。', 'error'); } } function restoreSettings() { try { var raw = localStorage.getItem(storageKey); if (!raw) return; var data = JSON.parse(raw); if (Array.isArray(data.custom)) { els.customKeywords.value = data.custom.join('\n'); } if (data.types) { els.typeDate.checked = !!data.types.date; els.typeMoney.checked = !!data.types.money; els.typePercent.checked = !!data.types.percent; els.typePhone.checked = !!data.types.phone; els.typeEmail.checked = !!data.types.email; els.typeUrl.checked = !!data.types.url; els.typeId.checked = !!data.types.id; els.typeIp.checked = !!data.types.ip; } els.caseSensitive.checked = !!data.caseSensitive; els.wholeWord.checked = !!data.wholeWord; els.regexMode.checked = !!data.regexMode; els.allowOverlap.checked = !!data.allowOverlap; if (data.style) { els.bgColor.value = data.style.bg || els.bgColor.value; els.fgColor.value = data.style.fg || els.fgColor.value; els.borderColor.value = data.style.border || els.borderColor.value; els.colorMode.value = data.style.colorMode || els.colorMode.value; els.bold.checked = data.style.bold !== false; els.underline.checked = !!data.style.underline; els.keepLineBreaks.checked = data.style.keepLineBreaks !== false; els.showLegend.checked = data.style.showLegend !== false; els.exportMode.value = data.style.exportMode || els.exportMode.value; } } catch (err) { localStorage.removeItem(storageKey); } } function updateRuleCount(manualCount) { var count = typeof manualCount === 'number' ? manualCount : buildRules(collectOptions()).length; els.ruleTotal.textContent = String(count); } function updateStylePreview() { var options = collectOptions(); els.stylePreview.setAttribute('style', styleToText({ bg: options.style.bg, fg: options.style.fg, border: options.style.border }, options)); } function resetOutput(clearStatus) { state.lastSingleHtml = ''; state.lastZipBlob = null; els.preview.innerHTML = emptyPreview(); els.stats.innerHTML = '暂无统计。'; els.legend.innerHTML = '暂无图例。'; els.copyHtml.classList.add('th-hidden'); els.downloadHtml.classList.add('th-hidden'); els.downloadZip.classList.add('th-hidden'); els.hitTotal.textContent = '0'; if (!els.modeFiles.checked) { els.fileTotal.textContent = '0'; } showProgress(false); setProgress(0); if (clearStatus !== false) { setStatus('请先完成设置，然后点击开始高亮。', ''); } } function emptyPreview() { return '

处理结果会显示在这里。

'; } function setStatus(message, type) { els.status.textContent = message || ''; els.status.classList.remove('ok', 'error'); if (type) { els.status.classList.add(type); } } function showProgress(show) { els.progressWrap.style.display = show ? 'block' : 'none'; } function setProgress(value) { var safe = Math.max(0, Math.min(100, value || 0)); els.progressBar.style.width = safe + '%'; els.progressBar.textContent = safe + '%'; } function mergeCounts(target, source) { Object.keys(source || {}).forEach(function (key) { target[key] = (target[key] || 0) + source[key]; }); } function waitFrame() { return new Promise(function (resolve) { requestAnimationFrame(resolve); }); } function formatBytes(bytes) { if (bytes < 1024) return bytes + ' B'; if (bytes < 1024 * 1024) return (bytes / 1024).toFixed(1) + ' KB'; if (bytes < 1024 * 1024 * 1024) return (bytes / 1024 / 1024).toFixed(1) + ' MB'; return (bytes / 1024 / 1024 / 1024).toFixed(1) + ' GB'; } function escapeRegExp(value) { return String(value).replace(/[.*+?^${}()|[\]\\]/g, '\\$&'); } function escapeHtml(value) { return String(value) .replace(/&/g, '&') .replace(//g, '>') .replace(/"/g, '"') .replace(/'/g, '''); } })();

Instructions

Software Usage Instructions

Select an input method: Choose “Single Text” or “Batch Files”. Single Text is suitable for pasting content for quick processing, while Batch Files is suitable for processing multiple text-based files at once, such as TXT, MD, CSV, JSON, XML, HTML, and LOG.
Import content: In single mode, paste content into the text box; in batch mode, select multiple files. The interface displays the first 20 file names, and the remaining files will still be processed and written to the ZIP.
Set keyword rules: Select built-in types such as date and duration, amount and currency, percentage, mobile number, email, URL, ID number, and IP address, or enter custom keywords.
Configure matching options: Set case sensitivity, whole-word matching, and custom keywords as regular expressions, and view overlapping match statistics.
Set highlight style: Adjust the background color, text color, and border color; choose a unified color scheme, color by keyword, or color by type; and set bold, underline, preserve line breaks, and legend display.
Start processing: After entering the “Processing Results” page, click “Start Highlighting”. The tool will generate match statistics, a rule legend, and a highlighted preview.
Copy and download: For single text, you can copy the result HTML or download an HTML file; for batch files, HTML files will be generated using the original file names, duplicate names will be automatically numbered, and the results will be packaged as a ZIP for download.

FAQ

A: Yes. Separate multiple expressions with line breaks or commas, and select “Custom keywords as regular expressions”. This is suitable for matching numbers, phone numbers, complex formats, or combined conditions.

A: Whole-word matching is suitable for precisely marking English words, numeric codes, and Chinese keyword boundaries, reducing cases where short words match fragments inside longer words.

A: To keep the interface responsive, the file list and preview only display the first 20 files; all selected files will be included during processing and written together into the ZIP result package.

A: Single text can be exported as an HTML file or a result snippet; batch files will generate a corresponding HTML file for each source file and package them as a ZIP for download.

A: The tool will keep the original file name as the output name; if a duplicate name is encountered, a number will be added after the file name, such as report.html or report-1.html.

A: No. Text reading, highlighting, HTML generation, and ZIP packaging are all completed on the current device, and file content will not be submitted to the server.